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feat: Advanced Templating (#823)

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1. Added `helmfile build` command to print final state
Motivation: useful for debugging purposes and some CI scenarios

Ref #780 

2. Template interpolation is now recursive (you can cross-reference release fields) like:
```yaml
templates:
  release:
    name: {{`app-{{ .Release.Namespace }}`}}
    namespace: {{`{{ .Release.Labels.ns }}`}}
    labels:
      ns: dev
```
3. Experimental: Added some boolean release fields interpolation in templates:
```yaml
templates:
  release:
    name: {{`app-{{ .Release.Namespace }}`}}
    namespace: dev
    installedTemplate: {{`{{ eq .Release.Namespace "dev" }}`}}
```

Resolves #818

4. Added more template interpolations: Labels, SetValues
5. Added template interpolation for inline Values
6. Added `helmfile list` command to print target releases in simple tabular form
7. Added release names in some `helm` output messages, e.g.: `Comparing release=%v, chart=%v`
This commit is contained in:
astorath
2019-08-31 14:31:31 +09:00
committed by KUOKA Yusuke
parent dd58badf81
commit 11d0abba6e
19 changed files with 770 additions and 146 deletions
Download Patch File Download Diff File Expand all files Collapse all files
pkg/helmexec/exec_test.go
+16 -15
View File
@@ -135,7 +135,7 @@ func Test_SyncRelease(t *testing.T) {
logger := NewLogger(&buffer, "debug")
helm := MockExecer(logger, "dev")
helm.SyncRelease(HelmContext{}, "release", "chart", "--timeout 10", "--wait")
expected := `Upgrading chart
expected := `Upgrading release=release, chart=chart
exec: helm upgrade --install --reset-values release chart --timeout 10 --wait --kube-context dev
exec: helm upgrade --install --reset-values release chart --timeout 10 --wait --kube-context dev:
`
@@ -145,7 +145,7 @@ exec: helm upgrade --install --reset-values release chart --timeout 10 --wait --
buffer.Reset()
helm.SyncRelease(HelmContext{}, "release", "chart")
expected = `Upgrading chart
expected = `Upgrading release=release, chart=chart
exec: helm upgrade --install --reset-values release chart --kube-context dev
exec: helm upgrade --install --reset-values release chart --kube-context dev:
`
@@ -160,7 +160,7 @@ func Test_SyncReleaseTillerless(t *testing.T) {
helm := MockExecer(logger, "dev")
helm.SyncRelease(HelmContext{Tillerless: true, TillerNamespace: "foo"}, "release", "chart",
"--timeout 10", "--wait")
expected := `Upgrading chart
expected := `Upgrading release=release, chart=chart
exec: helm tiller run foo -- helm upgrade --install --reset-values release chart --timeout 10 --wait --kube-context dev
exec: helm tiller run foo -- helm upgrade --install --reset-values release chart --timeout 10 --wait --kube-context dev:
`
@@ -198,8 +198,8 @@ func Test_BuildDeps(t *testing.T) {
var buffer bytes.Buffer
logger := NewLogger(&buffer, "debug")
helm := MockExecer(logger, "dev")
helm.BuildDeps("./chart/foo")
expected := `Building dependency ./chart/foo
helm.BuildDeps("foo", "./chart/foo")
expected := `Building dependency release=foo, chart=./chart/foo
exec: helm dependency build ./chart/foo --kube-context dev
exec: helm dependency build ./chart/foo --kube-context dev:
`
@@ -209,8 +209,8 @@ exec: helm dependency build ./chart/foo --kube-context dev:
buffer.Reset()
helm.SetExtraArgs("--verify")
helm.BuildDeps("./chart/foo")
expected = `Building dependency ./chart/foo
helm.BuildDeps("foo", "./chart/foo")
expected = `Building dependency release=foo, chart=./chart/foo
exec: helm dependency build ./chart/foo --verify --kube-context dev
exec: helm dependency build ./chart/foo --verify --kube-context dev:
`
@@ -248,7 +248,7 @@ func Test_DiffRelease(t *testing.T) {
logger := NewLogger(&buffer, "debug")
helm := MockExecer(logger, "dev")
helm.DiffRelease(HelmContext{}, "release", "chart", "--timeout 10", "--wait")
expected := `Comparing release chart
expected := `Comparing release=release, chart=chart
exec: helm diff upgrade --reset-values --allow-unreleased release chart --timeout 10 --wait --kube-context dev
exec: helm diff upgrade --reset-values --allow-unreleased release chart --timeout 10 --wait --kube-context dev:
`
@@ -258,7 +258,7 @@ exec: helm diff upgrade --reset-values --allow-unreleased release chart --timeou
buffer.Reset()
helm.DiffRelease(HelmContext{}, "release", "chart")
expected = `Comparing release chart
expected = `Comparing release=release, chart=chart
exec: helm diff upgrade --reset-values --allow-unreleased release chart --kube-context dev
exec: helm diff upgrade --reset-values --allow-unreleased release chart --kube-context dev:
`
@@ -272,7 +272,7 @@ func Test_DiffReleaseTillerless(t *testing.T) {
logger := NewLogger(&buffer, "debug")
helm := MockExecer(logger, "dev")
helm.DiffRelease(HelmContext{Tillerless: true}, "release", "chart", "--timeout 10", "--wait")
expected := `Comparing release chart
expected := `Comparing release=release, chart=chart
exec: helm tiller run -- helm diff upgrade --reset-values --allow-unreleased release chart --timeout 10 --wait --kube-context dev
exec: helm tiller run -- helm diff upgrade --reset-values --allow-unreleased release chart --timeout 10 --wait --kube-context dev:
`
@@ -413,8 +413,8 @@ func Test_Lint(t *testing.T) {
var buffer bytes.Buffer
logger := NewLogger(&buffer, "debug")
helm := MockExecer(logger, "dev")
helm.Lint("path/to/chart", "--values", "file.yml")
expected := `Linting path/to/chart
helm.Lint("release", "path/to/chart", "--values", "file.yml")
expected := `Linting release=release, chart=path/to/chart
exec: helm lint path/to/chart --values file.yml --kube-context dev
exec: helm lint path/to/chart --values file.yml --kube-context dev:
`
@@ -498,9 +498,10 @@ func Test_Template(t *testing.T) {
var buffer bytes.Buffer
logger := NewLogger(&buffer, "debug")
helm := MockExecer(logger, "dev")
helm.TemplateRelease("path/to/chart", "--values", "file.yml")
expected := `exec: helm template path/to/chart --values file.yml --kube-context dev
exec: helm template path/to/chart --values file.yml --kube-context dev:
helm.TemplateRelease("release", "path/to/chart", "--values", "file.yml")
expected := `Templating release=release, chart=path/to/chart
exec: helm template path/to/chart --name release --values file.yml --kube-context dev
exec: helm template path/to/chart --name release --values file.yml --kube-context dev:
`
if buffer.String() != expected {
t.Errorf("helmexec.Template()\nactual = %v\nexpect = %v", buffer.String(), expected)