octopod/helm-control-scripts

Generic scripts

This is a complete suite of Octopod control scripts to deploy helm charts. You can get pre-built docker images from hub.docker.com/r/typeable/octopod-generic-utils.

Contents

• create – a script to install a helm release
• update – a script to upgrade a helm release
• archive – a script to uninstall a helm release
• info – a script to print comma-separated pairs which will be placed as links in the Octopod Web UI
• cleanup – a script to delete dangling PVCs and letsencrypt certs left after helm uninstall command
• check – a script to check if resources created by helm are healthy. Right now only deployments and statefuls sets are checked
• archive_check – a script to check if helm uninstall really deleted the release
• init – a script to initialize something. This is the only script not run by Octopod, but as an init container.
• tag_check – a script to check that images in helm release are present in registries before invoking create script

Parameters

All scipts accept common parametes which are passed by Octopod when it invokes them.

Also, several environment variables are used to parametrize the default behavior:

• HELM_BIN – the path to the helm executable
• KUBECTL_BIN – the path to the kubectl executable
• HELM_USER – the (optional) user for a private helm registry
• HELM_PASS – the (optional) password for a private helm registry
• DEFAUTLS – the json with the default parameters (described below)

Default parameters

• default_overrides – an array with key-value pairs which will be passed as a --set flags for helm for each deployment
• chart_repo_url – the url for a chart repo
• chart_repo_name – the name of a chart repo (could be any string)
• chart_version – the version of a chart you want to install
• chart_name – the name of a chart you want to install

These parameters, if set up in the DEFAULTS variable, will be passed to every deployment unless overridden in the "deployment overrides" section of an Octopod deployment configuration.