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Bitops Plugin for Helm

Table of contents

  1. Introduction
  2. Installation
  3. Deployment
  4. HELM External Charts Deployment

Introduction

This plugin will let BitOps to automatically deploy helm templates to kubernates running on any provider.

Deployment

helm plugin uses bitops.config.yaml located in the operations repo when deploying resources using helm templates.

Sample Config

helm:
  cli:
    namespace: bitops
    timeout: 60s
    set:
     - "key1=value1"
     - "key2=value2"
    debug: false
    atomic: true
    force: true
    dry-run: true
  options:
    skip-deploy: false
    release-name: bitops-release
    uninstall-charts: "chart1,chart2"
    k8s:
      fetch:
        kubeconfig: true
        cluster-name: my-cluster
  plugins:

This version of helm plugin loops over the list of all helm chart folders of the operations repo and install in a sequential manner.

However if a helm chart folder name is passed in BITOPS_ENVIRONMENT_HELM_SUBDIRECTORY variable in the docker run, this plugin will only install that specific helm chart. Below is the sample docker run showing how to install only one helm chart.

docker run --rm --name bitops \
-e AWS_ACCESS_KEY_ID="${BITOPS_AWS_ACCESS_KEY_ID}" \
-e AWS_SECRET_ACCESS_KEY="${BITOPS_AWS_SECRET_ACCESS_KEY}" \
-e AWS_DEFAULT_REGION="${BITOPS_AWS_DEFAULT_REGION}" \
-e BITOPS_ENVIRONMENT="${ENVIRONMENT}" \
-e BITOPS_ENVIRONMENT_HELM_SUBDIRECTORY="ingress-nginx"  \
-v $(pwd):/opt/bitops_deployment \
bitops-core:latest

CLI and options configuration of helm bitops.schema.yaml

Helm BitOps Schema

bitops.schema.yaml


namespace

  • BitOps Property: namespace
  • Environment Variable: NAMESPACE
  • default: ""
  • required: "true"

namespace scope for this request. This is a required parameter.


timeout

  • BitOps Property: timeout
  • Environment Variable: TIMEOUT
  • default: "500s"

time to wait for any individual Kubernetes operation (like Jobs for hooks)


set

  • BitOps Property: set
  • Environment Variable: HELM_SET_FLAG
  • default: {}

list of "key=value" strings to pass in to helm via --set


debug

  • BitOps Property: debug
  • Environment Variable: HELM_DEBUG
  • default: ""

enable verbose helm output


atomic

  • BitOps Property: atomic
  • Environment Variable: TODO
  • default: ""

if set, the installation process deletes the installation on failure


force

  • BitOps Property: force
  • Environment Variable: TODO
  • default: ""

sets helm's --force flag


dry-run

  • BitOps Property: dry-run
  • Environment Variable: TODO
  • default: ""

simulate an install


Options Configuration


skip-deploy

  • BitOps Property: skip-deploy
  • Environment Variable: HELM_SKIP_DEPLOY
  • default: ""
  • Description: If set to true, regardless of the stack-action, deployment actions will be skipped.

release-name

  • BitOps Property: release-name
  • Environment Variable: HELM_RELEASE_NAME
  • default: ""

sets helm release name


uninstall

  • BitOps Property: uninstall
  • Environment Variable: HELM_UNINSTALL
  • default: ""

If true, this chart will be uninstalled instead of deployed/upgraded. If the environment variable HELM_UNINSTALL is passed in to the container, all BitOps managed charts for a given environment will be uninstalled.


kubeconfig

  • BitOps Property: k8s

configure cluster access. Has the following child-properties. Should provide one of k8s.kubeconfigpath or k8s.fetch.kubeconfig & k8s.fetch.cluster-name. Defaults to k8s.fetch.kubeconfig & k8s.fetch.cluster-name

path

  • BitOps Property: k8s.kubeconfigpath
  • Environment Variable: KUBE_CONFIG_PATH
  • default: ""

relative file path to .kubeconfig file

fetch

  • BitOps Property: k8s.fetch

k8s.fetch kubeconfig using cloud provider auth

enabled
  • BitOps Property: k8s.fetch.kubeconfig
  • Environment Variable: FETCH_KUBECONFIG
  • default: true

enables/disables k8s.fetch

cluster-name
  • BitOps Property: k8s.fetch.cluster-name
  • Environment Variable: CLUSTER_NAME
  • default: ""

cloud kubernetes cluster name for kubeconfig fetching.


Plugin Configuration

This section of bitops.config.yml is unique to helm and allows the customization of helm plugins


S3 Plugin

  • BitOps Property: s3

Configure helm s3 plugin with the following properties


region

  • BitOps Property: s3.region
  • Environment Variable: HELM_PLUGIN_S3_REGION

AWS region containing s3 bucket


bucket

  • BitOps Property: s3.bucket
  • Environment Variable: HELM_CHARTS_S3_BUCKET

AWS s3 bucket name


Additional Environment Variable Configuration

Although not captured in bitops.config.yml, the following environment variables can be set to further customize behaviour


HELM_SKIP_DEPLOY

Will skill all helm executions. This superseeds all other configuration


HELM_UNINSTALL_CHARTS

Comma separated string. If any of the charts to be deployed match one of the chart names listed here, it will be uninstalled with helm uninstall $HELM_RELEASE_NAME instead of deployed/upgraded.

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