Helm Resource for Concourse

Deploy to Kubernetes Helm from Concourse.

Installing

Add the resource type to your pipeline:

resource_types:
- name: helm
  type: docker-image
  source:
    repository: linkyard/concourse-helm-resource

Source Configuration

cluster_url: Required. URL to Kubernetes Master API service
cluster_ca: Optional. Base64 encoded PEM. Required if cluster_url is https.
token: Optional. Bearer token for Kubernetes. This, 'token_path' or admin_key/admin_cert are required if cluster_url is https.
token_path: Optional. Path to file containing the bearer token for Kubernetes. This, 'token' or admin_key/admin_cert are required if cluster_url is https.
admin_key: Optional. Base64 encoded PEM. Required if cluster_url is https and no token or 'token_path' is provided.
admin_cert: Optional. Base64 encoded PEM. Required if cluster_url is https and no token or 'token_path' is provided.
release: Optional. Name of the release (not a file, a string). (Default: autogenerated by helm)
namespace: Optional. Kubernetes namespace the chart will be installed into. (Default: default)
helm_init_server: Optional. Installs helm into the cluster if not already installed. (Default: false)
tiller_namespace: Optional. Kubernetes namespace where tiller is running (or will be installed to). (Default: kube-system)
tiller_service_account: Optional Name of the service account that tiller will use (only applies if helm_init_server is true).
repos: Optional. Array of Helm repositories to initialize, each repository is defined as an object with properties name, url (required) username and password (optional).
helm_host: Optional Address of Tiller. Skips helm discovery process. (only applies if helm_init_server is false).

Behavior

`check`: Check for new releases

Any new revisions to the release are returned, no matter their current state. The release must be specified in the source for check to work.

`in`: Not Supported

`out`: Deploy the helm chart

Deploys a Helm chart onto the Kubernetes cluster. Tiller must be already installed on the cluster.

Parameters

chart: Required. Either the file containing the helm chart to deploy (ends with .tgz) or the name of the chart (e.g. stable/mysql).
namespace: Optional. Either a file containing the name of the namespace or the name of the namespace. (Default: taken from source configuration).
release: Optional. Either a file containing the name of the release or the name of the release. (Default: taken from source configuration).
values: Optional. File containing the values.yaml for the deployment. Supports setting multiple value files using an array.
override_values: Optional. Array of values that can override those defined in values.yaml. Each entry in the array is a map containing a key and a value or path. Value is set directly while path reads the contents of the file in that path. A hide: true parameter ensures that the value is not logged and instead replaced with ***HIDDEN***
version: Optional Chart version to deploy, can be a file or a value. Only applies if chart is not a file.
delete: Optional. Deletes the release instead of installing it. Requires the name. (Default: false)
replace: Optional. Replace deleted release with same name. (Default: false)
force: Optional. Force resource update through delete/recreate if needed. (Default: false)
devel: Optional. Allow development versions of chart to be installed. This is useful when wanting to install pre-release charts (i.e. 1.0.2-rc1) without having to specify a version. (Default: false)
debug: Optional. Dry run the helm install with the debug flag which logs interpolated chart templates. (Default: false)
wait_until_ready: Optional. Set to the number of seconds it should wait until all the resources in the chart are ready. (Default: 0 which means don't wait).
recreate_pods: Optional. This flag will cause all pods to be recreated when upgrading. (Default: false)
show_diff: Optional. Show the diff that is applied if upgrading an existing successful release. Will not be used when devel is set. (Default: false)

Example

Out

Define the resource:

resources:
- name: myapp-helm
  type: helm
  source:
    cluster_url: https://kube-master.domain.example
    cluster_ca: _base64 encoded CA pem_
    admin_key: _base64 encoded key pem_
    admin_cert: _base64 encoded certificate pem_
    repos:
      - name: some_repo
        url: https://somerepo.github.io/charts

Add to job:

jobs:
  # ...
  plan:
  - put: myapp-helm
    params:
      chart: source-repo/chart-0.0.1.tgz
      values: source-repo/values.yaml
      override_values:
      - key: replicas
        value: 2
      - key: version
        path: version/number # Read value from version/number
      - key: secret
        value: ((my-top-secret-value)) # Pulled from a credentials backend like Vault
        hide: true # Hides value in output

License

eeveebank/concourse-helm-resource

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