WIP: separate slurm base and docker images

roles/slurm_dockerimage/tasks/dockerimage.yml

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+- copy:
+    src: "{{image.name}}.Dockerfile"
+    dest: "/container/docker-images/slurm/{{image.name}}.Dockerfile"
+    owner: "{{unpriv_user}}"
+    group: docker
+  register: slurm_cp_dockerfile
+
+# TODO: single source of truth:
+# dockerfile -> parse for startup files or startup files template in dockerfile
+
+- name: copy startup scripts
+  copy:
+    contents: "{{ item.content | default(lookup('file', item.name)) }}"
+    dest: "/container/docker-images/slurm/start-scripts/{{item.name}}"
+    owner: root
+    group: root
+    mode: u=rwx,g=rx,o=rx
+  loop: "{{ start_scripts | default([]) }}"
+  register: slurm_cp_stscrs
+
+- set_fact:
+    slurm_stscrs_changed: "{{ (slurm_stscrs_changed | default([])) +
+      (slurm_cp_stscrs.results | selectattr('changed') |
+       map(attribute='item.name') | list) }}"
+- set_fact:
+    slurm_stscrs_relevant: "{{ slurm_stscrs_changed |
+      intersect(start_scripts | default([]) | map(attribute='name') | list) |
+      length > 0 }}"
+
+- debug: msg="{{slurm_cp_dockerfile.changed or
+                     slurm_stscrs_relevant or
+                     slurm_baseimg_build_chg }}"
+
+- docker_image:
+    name: "slurm"
+    tag: "{{image.name}}"
+#    pull: False
+    build:
+      pull: False
+      path: "/container/docker-images/slurm/"
+      dockerfile: "{{image.name}}.Dockerfile"
+#      target: "{{image.name}}" # unsupported on old docker-py version as in el7
+    source: build
+    force_source: "{{slurm_cp_dockerfile.changed or
+                     slurm_stscrs_relevant or
+                     slurm_baseimg_build_chg }}"
+  # TODO: force when base image changed!

roles/slurm_dockerimage/tasks/main.yml

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+- file:
+    path: "/container/docker-images/slurm/start-scripts"
+    state: directory
+    owner: "{{unpriv_user}}"
+    group: docker
+
+# - name: copy Dockerfile, entrypoint, docker-init and munge startup
+- name: copy slurm base image requisite files
+  copy: # FIXME: swap out
+    src: "{{item.file}}"
+    dest: "/container/docker-images/slurm/{{item.file}}"
+    owner: "{{unpriv_user}}"
+    group: docker
+    mode: "{{ item.perms | default('u=rwx,g=rx,o=rx') }}"
+  loop:
+  - file: slurm-base.Dockerfile
+    perms: u=rw,g=r,o=r
+  - file: entrypoint.sh
+  - file: docker-init
+  - file: start-scripts/10-munge
+  when: not (slurm_baseimg_build_chg | default(False))
+  register: slurm_baseimg_copy
+
+- name: build base image
+  docker_image:
+    name: "slurm"
+    tag: "base"
+#    pull: False
+    build:
+      pull: False
+      path: "/container/docker-images/slurm/"
+      dockerfile: "slurm-base.Dockerfile"
+#      target: "{{image.name}}" # unsupported on old docker-py version as in el7
+    source: build
+    force_source: "{{slurm_baseimg_copy.changed}}"
+  # when: run only once but keep changed state
+  when: not (slurm_baseimg_build_chg | default(False))
+  register: slurm_baseimg_build
+
+- set_fact:
+    slurm_baseimg_build_chg:
+      "{{(slurm_baseimg_build_chg | default(False)) or
+         slurm_baseimg_build.changed}}"
+
+- include_tasks: dockerimage.yml