Merge pull request hitachienergy#2 from to-bar/feature/k8s-from-binaries

Download role

core/src/epicli/data/common/ansible/playbooks/download.yml

@@ -0,0 +1,8 @@
+---
+# Ansible playbook that downloads files and images
+
+- hosts: 127.0.0.1
+  gather_facts: no
+  connection: local
+  roles:
+    - download

core/src/epicli/data/common/ansible/playbooks/roles/download/tasks/download_all_files_to_cache.yml

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+---
+- name: "download_all_files_to_cache | Prepare list of all URLs with checksums"
+  set_fact:
+    urls: "{{ urls | default([]) + [ item ] }}"
+  loop: "{{ specification.files | json_query('*.values(@) | [].values(@) | []') }}"
+
+- name: download_all_files_to_cache | Download files
+  include_tasks: download_file_to_cache.yml
+  vars:
+    download: "{{ item }}"
+  loop: "{{ urls }}"

core/src/epicli/data/common/ansible/playbooks/roles/download/tasks/download_file_to_cache.yml

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+---
+- name: download_file_to_cache | Split URL
+  set_fact:
+    splitted_url: "{{ download.url | urlsplit }}"
+
+- name: download_file_to_cache | Set destination path
+  set_fact:
+    cached_file_path: "{{ specification.download_cache_dir }}/files/{{ splitted_url.hostname }}{{ splitted_url.path }}"
+
+- name: download_file_to_cache | Starting download
+  debug:
+    msg:
+      - "From: {{ download.url }}"
+      - "To: {{ cached_file_path }}"
+
+# Checking whether file already exists in cache could be handled by 'get_url' module, but 'stat' + when is faster
+- name: download_file_to_cache | Check if file is already in cache
+  stat:
+    path: "{{ cached_file_path }}"
+    checksum_algorithm: sha512
+  register: check_file_in_cache
+
+- name: download_file_to_cache | Set fact (is_file_in_cache)
+  set_fact:
+    is_file_in_cache: "{{ check_file_in_cache.stat.exists and check_file_in_cache.stat.checksum == download.sha512 }}"
+
+- name: download_file_to_cache | Get user
+  become: false
+  set_fact:
+    my_ansible_user: "{{ lookup('pipe','id -u -n') }}"
+  when:
+    - my_ansible_user is not defined
+
+- name: download_file_to_cache | Get group
+  become: false
+  set_fact:
+    my_ansible_group: "{{ lookup('pipe','id -g -n') }}"
+  when:
+    - my_ansible_group is not defined
+
+- name: download_file_to_cache | Create directory
+  file:
+    path: "{{ cached_file_path | dirname }}"
+    state: directory
+    owner: "{{ my_ansible_user }}"
+    group: "{{ my_ansible_group }}"
+  become: true
+  when:
+    - not is_file_in_cache
+
+- name: download_file_to_cache | Download file
+  get_url:
+    url: "{{ download.url }}"
+    dest: "{{ cached_file_path }}"
+    checksum: "{{ 'sha512:' + download.sha512 }}"
+    validate_certs: "{{ specification.validate_certs }}"
+  register: get_url_result
+  until: "'OK' in get_url_result.msg or 'file already exists' in get_url_result.msg"
+  retries: "{{ specification.download_retries }}"
+  delay: "{{ specification.download_retry_delay }}"
+  when:
+    - not is_file_in_cache

core/src/epicli/data/common/ansible/playbooks/roles/download/tasks/main.yml

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+---
+- name: Download all files to cache
+  include_tasks: download_all_files_to_cache.yml

core/src/epicli/data/common/defaults/configuration/download.yml

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+kind: configuration/download
+version: 0.3.0
+title: "Download settings and inventory"
+name: default
+specification:
+  download_cache_dir: /var/cache/epiphany
+  # If true, download directly from Internet (on remote hosts) without using local cache
+  direct_download: false
+  # If true, disable SSL validation of get_url module. Checksum validation will still be performed.
+  validate_certs: true
+  download_retries: 3
+  download_retry_delay: 5
+
+  files:
+    cni-plugins:
+      0.7.5:
+        amd64:
+          url: "https://github.com/containernetworking/plugins/releases/download/v0.7.5/cni-plugins-amd64-v0.7.5.tgz"
+          sha512: 1abfb567c13f87aab94efd6f2c6bb17f3581cbcce87bf8c6216510a92486cb44e6b8701fd3a6cb85273a97981feecbd0c4eb624eab0eca5a005fd85a7d95c284
+
+    kubeadm:
+      1.14.4:
+        amd64:
+          url: "https://storage.googleapis.com/kubernetes-release/release/v1.14.4/bin/linux/amd64/kubeadm"
+          sha512: 500ab172e7399917c55d9f83a1b7be28f0e85bf165cb606a8db589231b5bc55a5e4d7c8193270aac90ed1e89d8c30eba97876cd1a3f16ad527c911a9f25e1b75
+      1.13.8:
+        amd64:
+          url: "https://storage.googleapis.com/kubernetes-release/release/v1.13.8/bin/linux/amd64/kubeadm"
+          sha512: e4d876e3ff1f8da2ea434362c8c084d3280d3bdf552cfc18f631a317fa2a989313fb729eceafdadf76c85c9cfa3589a3c9b827e6c3154383ea64a1c3219f63bd
+      1.12.10:
+        amd64:
+          url: "https://storage.googleapis.com/kubernetes-release/release/v1.12.10/bin/linux/amd64/kubeadm"
+          sha512: dcb6b06195a093a87f952cbb3f471dd690da9baea4a8b09520900301b0e9cee3bfdb50cb28eb10dfdc5b73bbf6bcd08d5c49711f91cea14679ebb1690a9368d9
+
+    hyperkube:
+      1.14.4:
+        amd64:
+          url: "https://storage.googleapis.com/kubernetes-release/release/v1.14.4/bin/linux/amd64/hyperkube"
+          sha512: f32d4a85f7e1316e7abe2c84d051a3a3bd689645b18d4ae50ed89fa80e980e586727f69c01b247593c4182445b0d54f7f623a223a1baf7be10f81204e1298677
+      1.13.8:
+        amd64:
+          url: "https://storage.googleapis.com/kubernetes-release/release/v1.13.8/bin/linux/amd64/hyperkube"
+          sha512: f189a751bc3922aae40b9ee01e8a81bd15ac87286ddae9be6deefcca631c4b0856e443c4b15557d402674a6e54f08502058b3d7fe5326970d057e9113d2b83c8
+      1.12.10:
+        amd64:
+          url: "https://storage.googleapis.com/kubernetes-release/release/v1.12.10/bin/linux/amd64/hyperkube"
+          sha512: 17555aa5748f09b84db2af386f703e4b6d96fda6b7a4e5855f7a455909ef50b4e5de60b86ab60c10de8e3adf7a494bc444e1840645cc25509cbf80d690f4ad07