Initial commit

.gitlab-ci.yml

+image: docker:20.10.12
+
+variables:
+  DOCKER_TLS_CERTDIR: "/certs"
+  BUILD_VERSION: prosody-1
+
+services:
+  - docker:20.10.12-dind
+
+before_script:
+  - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
+  - SRC_VERSION=`grep FROM Dockerfile | cut -d ':' -f 2`
+  - VERSION="${SRC_VERSION}-${BUILD_VERSION}"
+
+build:
+  stage: build
+  script:
+    - docker pull $CI_REGISTRY_IMAGE:latest || true
+    - docker build --cache-from $CI_REGISTRY_IMAGE:latest --tag $CI_REGISTRY_IMAGE:$VERSION --tag $CI_REGISTRY_IMAGE:latest .
+    - docker push $CI_REGISTRY_IMAGE:$VERSION
+    - docker push $CI_REGISTRY_IMAGE:latest

Dockerfile

+FROM chocobozzz/peertube:v4.0.0-bullseye
+RUN apt -y update && apt install -y prosody && apt -y clean