Apply applies concrete update plan (schema + data) to local filesystem repo.

CRUpdateAll updates all registries, and returns if at least one got updated.

GetImageSHA gets the SHA of the provided image.

GetPlan returns concrete plan replacing placeholders in schema with actual data values, returns JSON-formatted representation of the plan and any error occurred.

GHReleases returns greatest current stable release and greatest latest rc or beta pre-release from GitHub owner/repo repository, and any error occurred.

ImageTagsFromDockerHub returns the 100 latest image tags from Docker Hub for the provided repository.

Loadf returns the file content read as byte slice.

ParseTmpl replaces placeholders in text with actual data values.

PullImage checks if current image exists locally, tries to pull it if not, and returns reference image url and any error occurred.

Run runs command cmd with stdin.

RunWithRetryNotify runs command cmd with stdin using exponential backoff for maxTime duration up to maxRetries (negative values will make it ignored), notifies about any intermediary errors and return any final error.

TagImage tags local image:current with stable version, and returns any error occurred.

FSRoot is a relative (to scripts in subfolders) root folder of local filesystem repo to update.

Item defines Content where all occurrences of each Replace map key, corresponding to GitHub TreeEntry.Path and/or local filesystem repo file path (prefixed with FSRoot), would be swapped with its respective actual map value (having placeholders replaced with data), creating a concrete update plan.

Response is used to unmarshal the response from Docker Hub.