615 lines
18 KiB
Go
615 lines
18 KiB
Go
package main
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import (
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"fmt"
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"github.com/roboll/helmfile/args"
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"github.com/roboll/helmfile/cmd"
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"github.com/roboll/helmfile/helmexec"
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"github.com/roboll/helmfile/pkg/app"
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"github.com/roboll/helmfile/state"
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"github.com/urfave/cli"
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"go.uber.org/zap"
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"go.uber.org/zap/zapcore"
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"os"
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"strings"
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)
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var Version string
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var logger *zap.SugaredLogger
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func configureLogging(c *cli.Context) error {
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// Valid levels:
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// https://github.com/uber-go/zap/blob/7e7e266a8dbce911a49554b945538c5b950196b8/zapcore/level.go#L126
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logLevel := c.GlobalString("log-level")
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if c.GlobalBool("quiet") {
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logLevel = "warn"
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}
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var level zapcore.Level
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err := level.Set(logLevel)
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if err != nil {
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return err
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}
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logger = helmexec.NewLogger(os.Stdout, logLevel)
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if c.App.Metadata == nil {
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// Auto-initialised in 1.19.0
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// https://github.com/urfave/cli/blob/master/CHANGELOG.md#1190---2016-11-19
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c.App.Metadata = make(map[string]interface{})
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}
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c.App.Metadata["logger"] = logger
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return nil
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}
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func main() {
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cliApp := cli.NewApp()
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cliApp.Name = "helmfile"
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cliApp.Usage = ""
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cliApp.Version = Version
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cliApp.Flags = []cli.Flag{
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cli.StringFlag{
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Name: "helm-binary, b",
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Usage: "path to helm binary",
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},
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cli.StringFlag{
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Name: "file, f",
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Usage: "load config from file or directory. defaults to `helmfile.yaml` or `helmfile.d`(means `helmfile.d/*.yaml`) in this preference",
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},
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cli.StringFlag{
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Name: "environment, e",
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Usage: "specify the environment name. defaults to `default`",
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},
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cli.BoolFlag{
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Name: "quiet, q",
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Usage: "Silence output. Equivalent to log-level warn",
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},
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cli.StringFlag{
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Name: "kube-context",
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Usage: "Set kubectl context. Uses current context by default",
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},
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cli.StringFlag{
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Name: "log-level",
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Usage: "Set log level, default info",
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},
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cli.StringFlag{
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Name: "namespace, n",
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Usage: "Set namespace. Uses the namespace set in the context by default, and is available in templates as {{ .Namespace }}",
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},
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cli.StringSliceFlag{
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Name: "selector, l",
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Usage: `Only run using the releases that match labels. Labels can take the form of foo=bar or foo!=bar.
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A release must match all labels in a group in order to be used. Multiple groups can be specified at once.
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--selector tier=frontend,tier!=proxy --selector tier=backend. Will match all frontend, non-proxy releases AND all backend releases.
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The name of a release can be used as a label. --selector name=myrelease`,
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},
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cli.BoolFlag{
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Name: "interactive, i",
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Usage: "Request confirmation before attempting to modify clusters",
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},
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}
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cliApp.Before = configureLogging
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cliApp.Commands = []cli.Command{
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{
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Name: "repos",
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Usage: "sync repositories from state file (helm repo add && helm repo update)",
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Flags: []cli.Flag{
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cli.StringFlag{
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Name: "args",
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Value: "",
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Usage: "pass args to helm exec",
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},
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},
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Action: func(c *cli.Context) error {
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return cmd.VisitAllDesiredStates(c, func(state *state.HelmState, helm helmexec.Interface, ctx app.Context) (bool, []error) {
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args := args.GetArgs(c.String("args"), state)
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if len(args) > 0 {
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helm.SetExtraArgs(args...)
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}
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errs := ctx.SyncReposOnce(state, helm)
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ok := len(state.Repositories) > 0 && len(errs) == 0
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return ok, errs
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})
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},
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},
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{
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Name: "charts",
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Usage: "DEPRECATED: sync releases from state file (helm upgrade --install)",
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Flags: []cli.Flag{
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cli.StringFlag{
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Name: "args",
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Value: "",
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Usage: "pass args to helm exec",
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},
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cli.StringSliceFlag{
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Name: "values",
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Usage: "additional value files to be merged into the command",
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},
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cli.IntFlag{
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Name: "concurrency",
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Value: 0,
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Usage: "maximum number of concurrent helm processes to run, 0 is unlimited",
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},
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},
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Action: func(c *cli.Context) error {
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affectedReleases := state.AffectedReleases{}
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errs := findAndIterateOverDesiredStatesUsingFlags(c, func(st *state.HelmState, helm helmexec.Interface, _ app.Context) []error {
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return executeSyncCommand(c, &affectedReleases, st, helm)
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})
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affectedReleases.DisplayAffectedReleases(c.App.Metadata["logger"].(*zap.SugaredLogger))
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return errs
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},
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},
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{
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Name: "diff",
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Usage: "diff releases from state file against env (helm diff)",
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Flags: []cli.Flag{
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cli.StringFlag{
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Name: "args",
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Value: "",
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Usage: "pass args to helm exec",
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},
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cli.StringSliceFlag{
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Name: "values",
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Usage: "additional value files to be merged into the command",
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},
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cli.BoolFlag{
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Name: "skip-deps",
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Usage: "skip running `helm repo update` and `helm dependency build`",
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},
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cli.BoolFlag{
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Name: "detailed-exitcode",
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Usage: "return a non-zero exit code when there are changes",
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},
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cli.BoolFlag{
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Name: "suppress-secrets",
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Usage: "suppress secrets in the output. highly recommended to specify on CI/CD use-cases",
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},
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cli.IntFlag{
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Name: "concurrency",
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Value: 0,
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Usage: "maximum number of concurrent helm processes to run, 0 is unlimited",
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},
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},
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Action: func(c *cli.Context) error {
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return findAndIterateOverDesiredStatesUsingFlags(c, func(state *state.HelmState, helm helmexec.Interface, ctx app.Context) []error {
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if !c.Bool("skip-deps") {
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if errs := ctx.SyncReposOnce(state, helm); errs != nil && len(errs) > 0 {
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return errs
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}
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if errs := state.BuildDeps(helm); errs != nil && len(errs) > 0 {
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return errs
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}
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}
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if errs := state.PrepareRelease(helm, "diff"); errs != nil && len(errs) > 0 {
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return errs
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}
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_, errs := executeDiffCommand(c, state, helm, c.Bool("detailed-exitcode"), c.Bool("suppress-secrets"))
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return errs
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})
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},
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},
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{
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Name: "template",
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Usage: "template releases from state file against env (helm template)",
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Flags: []cli.Flag{
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cli.StringFlag{
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Name: "args",
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Value: "",
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Usage: "pass args to helm template",
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},
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cli.StringSliceFlag{
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Name: "values",
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Usage: "additional value files to be merged into the command",
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},
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cli.IntFlag{
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Name: "concurrency",
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Value: 0,
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Usage: "maximum number of concurrent downloads of release charts",
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},
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cli.BoolFlag{
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Name: "skip-deps",
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Usage: "skip running `helm repo update` and `helm dependency build`",
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},
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},
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Action: func(c *cli.Context) error {
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return findAndIterateOverDesiredStatesUsingFlags(c, func(state *state.HelmState, helm helmexec.Interface, ctx app.Context) []error {
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if !c.Bool("skip-deps") {
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if errs := ctx.SyncReposOnce(state, helm); errs != nil && len(errs) > 0 {
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return errs
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}
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if errs := state.BuildDeps(helm); errs != nil && len(errs) > 0 {
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return errs
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}
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}
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if errs := state.PrepareRelease(helm, "template"); errs != nil && len(errs) > 0 {
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return errs
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}
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return executeTemplateCommand(c, state, helm)
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})
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},
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},
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{
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Name: "lint",
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Usage: "lint charts from state file (helm lint)",
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Flags: []cli.Flag{
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cli.StringFlag{
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Name: "args",
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Value: "",
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Usage: "pass args to helm exec",
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},
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cli.StringSliceFlag{
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Name: "values",
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Usage: "additional value files to be merged into the command",
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},
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cli.IntFlag{
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Name: "concurrency",
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Value: 0,
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Usage: "maximum number of concurrent downloads of release charts",
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},
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},
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Action: func(c *cli.Context) error {
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return findAndIterateOverDesiredStatesUsingFlags(c, func(state *state.HelmState, helm helmexec.Interface, ctx app.Context) []error {
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values := c.StringSlice("values")
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args := args.GetArgs(c.String("args"), state)
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workers := c.Int("concurrency")
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if errs := ctx.SyncReposOnce(state, helm); errs != nil && len(errs) > 0 {
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return errs
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}
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if errs := state.PrepareRelease(helm, "lint"); errs != nil && len(errs) > 0 {
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return errs
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}
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return state.LintReleases(helm, values, args, workers)
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})
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},
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},
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{
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Name: "sync",
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Usage: "sync all resources from state file (repos, releases and chart deps)",
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Flags: []cli.Flag{
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cli.StringSliceFlag{
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Name: "values",
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Usage: "additional value files to be merged into the command",
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},
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cli.IntFlag{
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Name: "concurrency",
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Value: 0,
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Usage: "maximum number of concurrent helm processes to run, 0 is unlimited",
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},
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cli.StringFlag{
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Name: "args",
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Value: "",
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Usage: "pass args to helm exec",
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},
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cli.BoolFlag{
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Name: "skip-deps",
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Usage: "skip running `helm repo update` and `helm dependency build`",
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},
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},
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Action: func(c *cli.Context) error {
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affectedReleases := state.AffectedReleases{}
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errs := findAndIterateOverDesiredStatesUsingFlags(c, func(st *state.HelmState, helm helmexec.Interface, ctx app.Context) []error {
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if !c.Bool("skip-deps") {
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if errs := ctx.SyncReposOnce(st, helm); errs != nil && len(errs) > 0 {
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return errs
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}
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if errs := st.BuildDeps(helm); errs != nil && len(errs) > 0 {
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return errs
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}
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}
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if errs := st.PrepareRelease(helm, "sync"); errs != nil && len(errs) > 0 {
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return errs
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}
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return executeSyncCommand(c, &affectedReleases, st, helm)
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})
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affectedReleases.DisplayAffectedReleases(c.App.Metadata["logger"].(*zap.SugaredLogger))
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return errs
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},
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},
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{
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Name: "apply",
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Usage: "apply all resources from state file only when there are changes",
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Flags: []cli.Flag{
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cli.StringSliceFlag{
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Name: "values",
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Usage: "additional value files to be merged into the command",
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},
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cli.IntFlag{
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Name: "concurrency",
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Value: 0,
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Usage: "maximum number of concurrent helm processes to run, 0 is unlimited",
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},
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cli.StringFlag{
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Name: "args",
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Value: "",
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Usage: "pass args to helm exec",
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},
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cli.BoolFlag{
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Name: "suppress-secrets",
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Usage: "suppress secrets in the diff output. highly recommended to specify on CI/CD use-cases",
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},
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cli.BoolFlag{
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Name: "skip-deps",
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Usage: "skip running `helm repo update` and `helm dependency build`",
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},
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},
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Action: func(c *cli.Context) error {
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affectedReleases := state.AffectedReleases{}
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errs := findAndIterateOverDesiredStatesUsingFlags(c, func(st *state.HelmState, helm helmexec.Interface, ctx app.Context) []error {
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if !c.Bool("skip-deps") {
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if errs := ctx.SyncReposOnce(st, helm); errs != nil && len(errs) > 0 {
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return errs
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}
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if errs := st.BuildDeps(helm); errs != nil && len(errs) > 0 {
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return errs
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}
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}
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if errs := st.PrepareRelease(helm, "apply"); errs != nil && len(errs) > 0 {
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return errs
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}
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releases, errs := executeDiffCommand(c, st, helm, true, c.Bool("suppress-secrets"))
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releasesToBeDeleted, err := st.DetectReleasesToBeDeleted(helm)
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if err != nil {
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errs = append(errs, err)
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}
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noError := true
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for _, e := range errs {
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switch err := e.(type) {
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case *state.DiffError:
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noError = noError && err.Code == 2
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default:
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noError = false
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}
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}
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// sync only when there are changes
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if noError {
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if len(releases) == 0 && len(releasesToBeDeleted) == 0 {
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// TODO better way to get the logger
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logger := c.App.Metadata["logger"].(*zap.SugaredLogger)
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logger.Infof("")
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logger.Infof("No affected releases")
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} else {
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names := []string{}
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for _, r := range releases {
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names = append(names, fmt.Sprintf(" %s (%s) UPDATED", r.Name, r.Chart))
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}
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for _, r := range releasesToBeDeleted {
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names = append(names, fmt.Sprintf(" %s (%s) DELETED", r.Name, r.Chart))
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}
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msg := fmt.Sprintf(`Affected releases are:
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%s
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Do you really want to apply?
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Helmfile will apply all your changes, as shown above.
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`, strings.Join(names, "\n"))
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interactive := c.GlobalBool("interactive")
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if !interactive || interactive && askForConfirmation(msg) {
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rs := []state.ReleaseSpec{}
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for _, r := range releases {
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rs = append(rs, *r)
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}
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for _, r := range releasesToBeDeleted {
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rs = append(rs, *r)
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}
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st.Releases = rs
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return executeSyncCommand(c, &affectedReleases, st, helm)
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}
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}
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}
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return errs
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})
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affectedReleases.DisplayAffectedReleases(c.App.Metadata["logger"].(*zap.SugaredLogger))
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return errs
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},
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},
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{
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Name: "status",
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Usage: "retrieve status of releases in state file",
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Flags: []cli.Flag{
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cli.IntFlag{
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Name: "concurrency",
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Value: 0,
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Usage: "maximum number of concurrent helm processes to run, 0 is unlimited",
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},
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cli.StringFlag{
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Name: "args",
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Value: "",
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Usage: "pass args to helm exec",
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},
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},
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Action: func(c *cli.Context) error {
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return findAndIterateOverDesiredStatesUsingFlags(c, func(state *state.HelmState, helm helmexec.Interface, _ app.Context) []error {
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workers := c.Int("concurrency")
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args := args.GetArgs(c.String("args"), state)
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if len(args) > 0 {
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helm.SetExtraArgs(args...)
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}
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return state.ReleaseStatuses(helm, workers)
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})
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},
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},
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{
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Name: "delete",
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Usage: "DEPRECATED: delete releases from state file (helm delete)",
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Flags: []cli.Flag{
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cli.StringFlag{
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Name: "args",
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Value: "",
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Usage: "pass args to helm exec",
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},
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cli.BoolFlag{
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Name: "purge",
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Usage: "purge releases i.e. free release names and histories",
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},
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},
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Action: func(c *cli.Context) error {
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affectedReleases := state.AffectedReleases{}
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errs := cmd.FindAndIterateOverDesiredStatesUsingFlagsWithReverse(c, true, func(state *state.HelmState, helm helmexec.Interface, _ app.Context) []error {
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purge := c.Bool("purge")
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args := args.GetArgs(c.String("args"), state)
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if len(args) > 0 {
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helm.SetExtraArgs(args...)
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}
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names := make([]string, len(state.Releases))
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for i, r := range state.Releases {
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names[i] = fmt.Sprintf(" %s (%s)", r.Name, r.Chart)
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}
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msg := fmt.Sprintf(`Affected releases are:
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%s
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Do you really want to delete?
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Helmfile will delete all your releases, as shown above.
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`, strings.Join(names, "\n"))
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interactive := c.GlobalBool("interactive")
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if !interactive || interactive && askForConfirmation(msg) {
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return state.DeleteReleases(&affectedReleases, helm, purge)
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}
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return nil
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})
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affectedReleases.DisplayAffectedReleases(c.App.Metadata["logger"].(*zap.SugaredLogger))
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return errs
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},
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},
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{
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Name: "destroy",
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Usage: "deletes and then purges releases",
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Flags: []cli.Flag{
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cli.StringFlag{
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Name: "args",
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Value: "",
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Usage: "pass args to helm exec",
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},
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},
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Action: func(c *cli.Context) error {
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affectedReleases := state.AffectedReleases{}
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errs := cmd.FindAndIterateOverDesiredStatesUsingFlagsWithReverse(c, true, func(state *state.HelmState, helm helmexec.Interface, _ app.Context) []error {
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args := args.GetArgs(c.String("args"), state)
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if len(args) > 0 {
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helm.SetExtraArgs(args...)
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}
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names := make([]string, len(state.Releases))
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for i, r := range state.Releases {
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names[i] = fmt.Sprintf(" %s (%s)", r.Name, r.Chart)
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}
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msg := fmt.Sprintf(`Affected releases are:
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%s
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Do you really want to delete?
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Helmfile will delete all your releases, as shown above.
|
|
|
|
`, strings.Join(names, "\n"))
|
|
interactive := c.GlobalBool("interactive")
|
|
if !interactive || interactive && askForConfirmation(msg) {
|
|
return state.DeleteReleases(&affectedReleases, helm, true)
|
|
}
|
|
return nil
|
|
})
|
|
affectedReleases.DisplayAffectedReleases(c.App.Metadata["logger"].(*zap.SugaredLogger))
|
|
return errs
|
|
},
|
|
},
|
|
{
|
|
Name: "test",
|
|
Usage: "test releases from state file (helm test)",
|
|
Flags: []cli.Flag{
|
|
cli.BoolFlag{
|
|
Name: "cleanup",
|
|
Usage: "delete test pods upon completion",
|
|
},
|
|
cli.StringFlag{
|
|
Name: "args",
|
|
Value: "",
|
|
Usage: "pass additional args to helm exec",
|
|
},
|
|
cli.IntFlag{
|
|
Name: "timeout",
|
|
Value: 300,
|
|
Usage: "maximum time for tests to run before being considered failed",
|
|
},
|
|
cli.IntFlag{
|
|
Name: "concurrency",
|
|
Value: 0,
|
|
Usage: "maximum number of concurrent helm processes to run, 0 is unlimited",
|
|
},
|
|
},
|
|
Action: func(c *cli.Context) error {
|
|
return findAndIterateOverDesiredStatesUsingFlags(c, func(state *state.HelmState, helm helmexec.Interface, _ app.Context) []error {
|
|
cleanup := c.Bool("cleanup")
|
|
timeout := c.Int("timeout")
|
|
concurrency := c.Int("concurrency")
|
|
|
|
args := args.GetArgs(c.String("args"), state)
|
|
if len(args) > 0 {
|
|
helm.SetExtraArgs(args...)
|
|
}
|
|
|
|
return state.TestReleases(helm, cleanup, timeout, concurrency)
|
|
})
|
|
},
|
|
},
|
|
}
|
|
|
|
err := cliApp.Run(os.Args)
|
|
if err != nil {
|
|
fmt.Fprintf(os.Stderr, "%v\n", err)
|
|
os.Exit(3)
|
|
}
|
|
}
|
|
|
|
func executeSyncCommand(c *cli.Context, affectedReleases *state.AffectedReleases, state *state.HelmState, helm helmexec.Interface) []error {
|
|
args := args.GetArgs(c.String("args"), state)
|
|
if len(args) > 0 {
|
|
helm.SetExtraArgs(args...)
|
|
}
|
|
|
|
values := c.StringSlice("values")
|
|
workers := c.Int("concurrency")
|
|
|
|
return state.SyncReleases(affectedReleases, helm, values, workers)
|
|
}
|
|
|
|
func executeTemplateCommand(c *cli.Context, state *state.HelmState, helm helmexec.Interface) []error {
|
|
args := args.GetArgs(c.String("args"), state)
|
|
values := c.StringSlice("values")
|
|
workers := c.Int("concurrency")
|
|
|
|
return state.TemplateReleases(helm, values, args, workers)
|
|
}
|
|
|
|
func executeDiffCommand(c *cli.Context, st *state.HelmState, helm helmexec.Interface, detailedExitCode, suppressSecrets bool) ([]*state.ReleaseSpec, []error) {
|
|
args := args.GetArgs(c.String("args"), st)
|
|
if len(args) > 0 {
|
|
helm.SetExtraArgs(args...)
|
|
}
|
|
|
|
values := c.StringSlice("values")
|
|
workers := c.Int("concurrency")
|
|
triggerCleanupEvents := c.Command.HasName("diff")
|
|
|
|
return st.DiffReleases(helm, values, workers, detailedExitCode, suppressSecrets, triggerCleanupEvents)
|
|
}
|
|
|
|
func findAndIterateOverDesiredStatesUsingFlags(c *cli.Context, converge func(*state.HelmState, helmexec.Interface, app.Context) []error) error {
|
|
return cmd.FindAndIterateOverDesiredStatesUsingFlagsWithReverse(c, false, converge)
|
|
}
|