add docker image

.gitlab-ci.yml

+include:
+- project: docker-images/templates
+  ref: master
+  file: images.gitlab-ci.yml
+
+build_rsync_image:
+  extends: .build_image_job_template
+  variables:
+    IMAGE_BASENAME: andrijoos/rsync
+    IMAGE_NAME: ${IMAGE_BASENAME}:3.20.3,${IMAGE_BASENAME}:3.20,${IMAGE_BASENAME}:3,${IMAGE_BASENAME}:latest
+    IMAGE_SERVER: ""
+    DOCKER_LOGIN_CMD: docker login --username ${DOCKER_HUB_USERNAME} --password ${DOCKER_HUB_ACCESS_TOKEN}
+    DOCKER_LOGOUT_CMD: docker logout

Dockerfile

+FROM alpine:3.20.3
+
+RUN apk add --no-cache \
+    openssh-client \
+    openssh \
+    rsync \
+    git \
+    bash