---
# Copyright 2019 Nokia
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

- name: get the properties of the image:tag manifest
  shell: "curl -i -H'Accept: application/vnd.docker.distribution.manifest.v2+json' {{ registry }}/v2/{{ image_name }}/manifests/{{ image_tag }}"
  register: result

- fail:
    msg: "{{ image_name }}/manifests/{{ image_tag }} manifest not found!"
  when: ( result.stdout.find("MANIFEST_UNKNOWN") != -1)

- name: get the properties of the image:tag manifest
  shell: "echo '{{ result.stdout }}' > /tmp/{{ image_name|replace('/', '_') }}_{{ image_tag }}.manifest"

- name: get the digest property
  shell: grep Docker-Content-Digest /tmp/{{ image_name|replace('/', '_') }}_{{ image_tag }}.manifest | awk -F" " '{print $2}'
  register: Docker_Content_Digest

- name: delete the manifest using the digest property
  shell: "curl -XDELETE -H'Accept: application/vnd.docker.distribution.manifest.v2+json' {{ registry }}/v2/{{ image_name }}/manifests/{{ Docker_Content_Digest.stdout }}"

- name: get a registry pod id
  shell: kubectl get pods -n kube-system | grep registry | grep Running | head -n 1 | awk -F" " '{print $1}'
  register: registry_pod_id

- fail:
    msg: "failure: no registry pod running"
  when: ( registry_pod_id.stdout == "" )

- name: get the registry config file
  shell: kubectl exec {{ registry_pod_id.stdout }} -c registry -n kube-system -- ps -o args | grep "registry serve" | awk -F'serve ' '{print $2}'
  register: registry_config_file

- name: run the registry garbage collector
  shell: kubectl exec {{ registry_pod_id.stdout }} -c registry -n kube-system -- /usr/bin/registry garbage-collect {{ registry_config_file.stdout }} > /tmp/{{ image_name|replace('/', '_') }}_{{ image_tag }}.gclog