Fix environment file quoting

Strip quotes from stepEnv (#30)

Fixes https://github.com/EmbarkStudios/k8s-buildkite-plugin/issues/29

Updated buildkite, kubectl. Expose more buildkite env vars

Update plugin image (#28)

The image contains the updated buildkite and kubectl from #27

Configurable Service Account

1.2.10

Add `service-account-name` option (#25)

1.2.9

• Pass BUILDKITE env var #22
• Ensure job name is always valid #23
• Stability improvements #14

1.2.8

Add istio injection prevention annotation

1.2.7

Adds init-environment-from-secret option to include environment variables from secrets into init container (PR #7 @boufleur)

Add default secrets option

This adds a default-secret-name config option.

Make use-agent-node-affinity config optional

The plugin should not complain anymore if no value is provided for the argument

Detect node affinity automatically

Adds use-agent-node-affinity configuration parameter to allow creating jobs with the same tolerations as the buildkite agent that creates it.

Buildkite-agent 3.15.0

This release updates the default buildkite-agent to the latest 3.15.0 release, which includes fixes for using submodules with git >= 2.20.0.

Also, an important fix how labels are set on resulting Jobs, where we now strip out all invalid characters. This fixes a common error where branches for example contain /, which is not a valid character in labels.