diff --git a/lib/datasource/docker/readme.md b/lib/datasource/docker/readme.md new file mode 100644 index 0000000000000000000000000000000000000000..fac24ca3072660b36c1cd1b572ca2bf7ecc910ca --- /dev/null +++ b/lib/datasource/docker/readme.md @@ -0,0 +1,5 @@ +This datasource identifies an image's source repository according to the [pre-defined annotation keys of the OCI Image Format Specification](https://github.com/opencontainers/image-spec/blob/main/annotations.md). + +This datasource looks for the metadata of the **latest stable** image found on the Docker registry and uses the value of the label `org.opencontainers.image.source` as the `sourceUrl`. + +The [Label Schema](https://label-schema.org/) is superseded by OCI annotations, therefore this datasource does not support the `org.label-schema.vcs-url` label.