add OCI labels to Docker image

.goreleaser.yaml

@@ -47,3 +47,14 @@ dockers:
   - "ghcr.io/tantalor93/dnspyre:v{{ .Major }}"
   - "ghcr.io/tantalor93/dnspyre:v{{ .Major }}.{{ .Minor }}"
   - "ghcr.io/tantalor93/dnspyre:latest"
+  build_flag_templates:
+  - "--label=org.opencontainers.image.created={{.Date}}"
+  - "--label=org.opencontainers.image.authors=Ondřej Benkovský <[email protected]>"
+  - "--label=org.opencontainers.image.url=https://tantalor93.github.io/dnspyre"
+  - "--label=org.opencontainers.image.documentation=https://tantalor93.github.io/dnspyre"
+  - "--label=org.opencontainers.image.source=https://github.com/Tantalor93/dnspyre"
+  - "--label=org.opencontainers.image.version={{.Version}}"
+  - "--label=org.opencontainers.image.revision={{.FullCommit}}"
+  - "--label=org.opencontainers.image.licenses=MIT"
+  - "--label=org.opencontainers.image.title={{.ProjectName}}"
+  - "--label=org.opencontainers.image.description=tool for a high QPS DNS benchmark"

Dockerfile-goreleaser

@@ -2,7 +2,6 @@ FROM alpine:latest as certs
 RUN apk --update add ca-certificates
 
 FROM scratch
-LABEL org.opencontainers.image.source=https://github.com/tantalor93/dnspyre
 COPY --from=certs /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
 COPY dnspyre /dnspyre
 ENTRYPOINT ["/dnspyre"]