Initial commit

.gitlab-ci.yml

+image: docker:20.10.9
+
+variables:
+  DOCKER_TLS_CERTDIR: "/certs"
+
+services:
+  - docker:20.10.9-dind
+
+before_script:
+  - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
+
+build:
+  stage: build
+  script:
+    - VERSION=`head -n 1 Dockerfile | cut -d : -f 2`
+    - 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 postgres:13
+MAINTAINER Andrej Ramašeuski <andrej.ramaseuski@pirati.cz>
+RUN localedef -i cs_CZ -c -f UTF-8 -A /usr/share/locale/locale.alias cs_CZ.UTF-8
+ENV LANG cs_CZ.utf8