This adds `releases[].labels` in which you can set arbitrary number of key-value pairs, so that commands like `helmfile sync --selector key=value` can be used to run the helmfile subcommand against a subnet of declared releases.
`labels` and `selector` are named as such on purpose of being consistent with terminology of Kubernetes and other tools in the K8S ecosystem, including kubectl, stern, helm, and so on.
Resolves#8
So that our user can start leveraging helmfile without too much confusion.
Includes two things:
- A "getting started" guide
- A basic description of the `sync` subcommand
This is important for deployments where the chart repo is protected by client cert validation.
helmfile.yaml is extended to support `certFile` and `keyFile`:
```
repositories:
- name: roboll
url: http://roboll.io/charts
certFile: optional_client_cert
keyFile: optional_client_key
```
Everything works the same if you don't provide values for them.
Regarding the implementation, the "helm repo add" command already supports the cert-file and key-file values, so we just have to pass them through.
* Allow specifying a default namespace used across all the releases
Omit `namespace` in `charts[].namespace` of charts.yaml and then run `helmfile sync -n yourns` to install your charts into `yourns`.
Resolves#31
* Add option to throttle concurrent `helm repo update` calls
Have added a new flag `--concurrency N` to `helmfile sync charts` that can be used to set a
limit on the number of concurrent calls to helm.
Implementation details:
Switched `SyncCharts` from using a WaitGroup to using a pool
of workers and a queue of jobs. To ensure that this is thread safe and
an attempt is made to sync each chart at the end.
Fixes#23
* Fix formatting and update CI to catch these errors
Have fixed the formatting so that `make pristine` now passes. Have also
added this to the Circle CI config to catch these errors in the future.
So that we can just reuse release names after `helmfile delete`.
This is verified to work by confirming that `helmfile delete` does add `--purge` flag to `helm delete`:
```
$ helmfile delete
exec: helm delete --purge brigade-project
release "brigade-project" deleted
```
And by confirming that I can now re-install releases from the same charts.yaml without any modification of release names:
```
PROJECT=deis/empty-testbed ENV=staging IMAGE=mumoshu/golang-k8s-aws:1.9.1 COMMAND='go' SERVICE_ACCOUNT=default helmfile sync
Release "brigade-project" does not exist. Installing it now.
NAME: brigade-project
LAST DEPLOYED: Tue Feb 27 15:59:38 2018
NAMESPACE: kube-system
STATUS: DEPLOYED
RESOURCES:
*snip*
```
Fixes#33
Cedric Meury
KUOKA Yusuke
Shane Starcher
Fabien Silberstein
Alex Withrow
Maximilian Gaß
rob boll
Greg Burton
mseashor
bob
Thomas O'Donnell
jayste