INF-162 - Init role for keycloak

- Download the keycloak installation file
- Install service file
- Create admin account

Change-Id: I18ef42f072f0fc071cb448bc4ab7e0a388748054
diff --git a/.cookiecutter_params.json b/.cookiecutter_params.json
new file mode 100644
index 0000000..02df9f2
--- /dev/null
+++ b/.cookiecutter_params.json
@@ -0,0 +1,20 @@
+{
+    "_template": "../cookiecutters/role/",
+    "author": "Open Networking Foundation",
+    "company": "Open Networking Foundation",
+    "description": "Keycloak Server",
+    "email": "support@opennetworking.org",
+    "issue_tracker_url": "https://jira.opennetworking.org/",
+    "license": "Apache-2.0",
+    "min_ansible_version": "2.9.5",
+    "molecule_privileged": "true",
+    "platform": "deleteme",
+    "platforms": {
+        "Debian": [
+            "11"
+        ]
+    },
+    "role_defaults": {},
+    "role_name": "keycloak",
+    "year": "2021"
+}
diff --git a/.gitreview b/.gitreview
new file mode 100644
index 0000000..1323d20
--- /dev/null
+++ b/.gitreview
@@ -0,0 +1,5 @@
+[gerrit]
+host=gerrit.opencord.org
+port=29418
+project=ansible/role/keycloak.git
+defaultremote=origin
diff --git a/.reuse/dep5 b/.reuse/dep5
new file mode 100644
index 0000000..6ccf572
--- /dev/null
+++ b/.reuse/dep5
@@ -0,0 +1,5 @@
+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+
+Files: .cookiecutter_params.json VERSION .gitreview
+Copyright: 2021 Open Networking Foundation
+License: Apache-2.0
diff --git a/LICENSES/Apache-2.0.txt b/LICENSES/Apache-2.0.txt
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/LICENSES/Apache-2.0.txt
@@ -0,0 +1,202 @@
+
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diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..d142050
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,39 @@
+# keycloak Makefile
+#
+# SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+SHELL = bash -eu -o pipefail
+
+.DEFAULT_GOAL := help
+.PHONY: test lint yamllint ansiblelint license help
+
+test: ## run tests on the playbook with molecule
+	molecule --version
+	molecule test
+
+lint: yamllint ansiblelint ## run all lint checks
+
+# all YAML files
+YAML_FILES ?= $(shell find . -type f \( -name '*.yaml' -o -name '*.yml' \) -print )
+
+yamllint: ## lint check with yamllint
+	yamllint --version
+	yamllint \
+    -d "{extends: default, rules: {line-length: {max: 99}}}" \
+    -s $(YAML_FILES)
+
+ansiblelint: ## lint check with ansible-lint
+	ansible-lint --version
+	ansible-lint -v .
+	ansible-lint -v molecule/*/*
+
+license: ## Check license with the reuse tool
+	reuse --version
+	reuse --root . lint
+
+help: ## Print help for each target
+	@echo keycloak test targets
+	@echo
+	@grep '^[[:alnum:]_-]*:.* ##' $(MAKEFILE_LIST) \
+    | sort | awk 'BEGIN {FS=":.* ## "}; {printf "%-25s %s\n", $$1, $$2};'
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..bf177be
--- /dev/null
+++ b/README.md
@@ -0,0 +1,31 @@
+<!--
+SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
+SPDX-License-Identifier: Apache-2.0
+--!>
+# keycloak
+
+Keycloak Server
+
+## Requirements
+
+Minimum ansible version: 2.9.5
+
+## Defaults
+
+List of default values for variables:
+
+## Example Playbook
+
+```yaml
+- hosts: all
+  vars:
+  roles:
+    - keycloak
+
+```
+
+## License and Author
+
+© 2021 Open Networking Foundation <support@opennetworking.org>
+
+License: Apache-2.0
diff --git a/VERSION b/VERSION
new file mode 100644
index 0000000..c0ab82c
--- /dev/null
+++ b/VERSION
@@ -0,0 +1 @@
+0.0.1-dev
diff --git a/defaults/main.yml b/defaults/main.yml
new file mode 100644
index 0000000..10b0988
--- /dev/null
+++ b/defaults/main.yml
@@ -0,0 +1,27 @@
+---
+# keycloak defaults/main.yml
+#
+# SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+#
+keycloak_java_version: 11
+
+keycloak_username: "keycloak"
+keycloak_groupname: "keycloak"
+keycloak_comment: "Keycloak, an identity and access management solution "
+keycloak_shell: "/usr/sbin/nologin"
+
+keycloak_download_url:
+    "https://github.com/keycloak/keycloak/releases/download/\
+    {{ keycloak_version }}/keycloak-{{ keycloak_version}}.tar.gz"
+keycloak_version: 15.0.2
+keycloak_checksum: "sha256:1915e33b3789eb426fda06676e39b9ddf3a7b563e1e2381a92a02da814dad047"
+
+keycloak_base_dir: /opt
+keycloak_dist_dir: "{{ keycloak_base_dir }}/dist/keycloak"
+keycloak_working_dir: "{{ keycloak_base_dir}}/keycloak"
+
+keycloak_admin_username: "admin"
+keycloak_admin_password: "changeme"
+
+keycloak_listen_address: "0.0.0.0"
diff --git a/handlers/main.yml b/handlers/main.yml
new file mode 100644
index 0000000..2bce93a
--- /dev/null
+++ b/handlers/main.yml
@@ -0,0 +1,21 @@
+---
+# keycloak handlers/main.yml
+#
+# SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+
+- name: start-keycloak
+  service:
+    name: "{{ item }}"
+    state: "started"
+    enabled: true
+  with_items:
+    - "keycloak"
+
+- name: restart-keycloak
+  service:
+    name: "{{ item }}"
+    state: "restarted"
+  with_items:
+    - "keycloak"
diff --git a/meta/main.yml b/meta/main.yml
new file mode 100644
index 0000000..fec0a88
--- /dev/null
+++ b/meta/main.yml
@@ -0,0 +1,26 @@
+---
+# keycloak meta/main.yml
+#
+# SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+galaxy_info:
+  author: Open Networking Foundation
+  description: Keycloak Server
+  company: Open Networking Foundation
+
+  issue_tracker_url: https://jira.opennetworking.org/
+
+  license: Apache-2.0
+
+  min_ansible_version: 2.9.5
+
+  platforms:
+    - name: debian
+      versions:
+        - "11"
+
+  galaxy_tags:
+    - keycloak
+
+dependencies: []
diff --git a/molecule/default/converge.yml b/molecule/default/converge.yml
new file mode 100644
index 0000000..cb3f97e
--- /dev/null
+++ b/molecule/default/converge.yml
@@ -0,0 +1,12 @@
+---
+# keycloak molecule/default/verify.yml
+#
+# SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+- name: Converge
+  hosts: all
+  tasks:
+    - name: "Include keycloak"
+      include_role:
+        name: "keycloak"
diff --git a/molecule/default/molecule.yml b/molecule/default/molecule.yml
new file mode 100644
index 0000000..08b9c30
--- /dev/null
+++ b/molecule/default/molecule.yml
@@ -0,0 +1,25 @@
+---
+# keycloak molecule/default/molecule.yml
+#
+# SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+dependency:
+  name: galaxy
+driver:
+  name: docker
+platforms:
+  - name: "debian-11-priv"
+    image: "onfinfra/molecule-systemd:debian-11"
+    privileged: true
+    volumes:
+      - "/sys/fs/cgroup:/sys/fs/cgroup:ro"
+provisioner:
+  name: ansible
+  inventory:
+    host_vars:
+      debian-11-priv:
+        keycloak_admin_username: "admin"
+        keycloak_admin_password: "changeme"
+verifier:
+  name: ansible
diff --git a/molecule/default/verify.yml b/molecule/default/verify.yml
new file mode 100644
index 0000000..f05340a
--- /dev/null
+++ b/molecule/default/verify.yml
@@ -0,0 +1,17 @@
+---
+# keycloak molecule/default/verify.yml
+#
+# SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+- name: Verify
+  hosts: all
+  tasks:
+  - name: Check that Keycloak is running with configured username/password
+    community.general.keycloak_client:
+      auth_keycloak_url: http://localhost:8080/auth
+      auth_realm: master
+      auth_username: "{{ keycloak_admin_username }}"
+      auth_password: "{{ keycloak_admin_password }}"
+      client_id: test
+      state: present
diff --git a/tasks/Debian.yml b/tasks/Debian.yml
new file mode 100644
index 0000000..a3bd3ff
--- /dev/null
+++ b/tasks/Debian.yml
@@ -0,0 +1,22 @@
+---
+# keycloak tasks/Debian.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+- name: Install Prerequisites Packages
+  apt:
+    name:
+      - "openjdk-{{ keycloak_java_version }}-jdk"
+    state: "present"
+    update_cache: true
+
+- name: Create systemd service unit files for keycloak services
+  template:
+    src: "{{ item }}.j2"
+    dest: "/etc/systemd/system/{{ item }}"
+    owner: "root"
+    group: "root"
+    mode: "0644"
+  with_items:
+    - keycloak.service
diff --git a/tasks/main.yml b/tasks/main.yml
new file mode 100644
index 0000000..0df97e8
--- /dev/null
+++ b/tasks/main.yml
@@ -0,0 +1,77 @@
+---
+# keycloak tasks/main.yml
+#
+# SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+- name: include OS-specific tasks
+  include_tasks: "{{ ansible_os_family }}.yml"
+
+- name: Create group for Keycloak
+  group:
+    name: "{{ keycloak_groupname }}"
+
+- name: Create user for Keycloak
+  user:
+    name: "{{ keycloak_username }}"
+    group: "{{ keycloak_groupname }}"
+    comment: "{{ keycloak_comment }}"
+    shell: "{{ keycloak_shell }}"
+    system: true
+    password_lock: true
+
+- name: Create keycloak dist directory
+  file:
+    path: "{{ keycloak_dist_dir }}"
+    owner: "{{ keycloak_username }}"
+    group: "{{ keycloak_groupname }}"
+    state: directory
+    mode: 0700
+
+- name: Download keycloak
+  get_url:
+    url: "{{ keycloak_download_url }}"
+    dest: "{{ keycloak_dist_dir }}"
+    timeout: 30
+    checksum: "{{ keycloak_checksum }}"
+  become: true
+  become_user: "{{ keycloak_username }}"
+
+- name: Extract keycloak
+  unarchive:
+    remote_src: true
+    src: "{{ keycloak_dist_dir }}/keycloak-{{ keycloak_version }}.tar.gz"
+    dest: "{{ keycloak_base_dir }}"
+    owner: "{{ keycloak_username }}"
+    group: "{{ keycloak_groupname }}"
+    creates: "{{ keycloak_base_dir }}/keycloak-{{ keycloak_version }}"
+
+- name: Link Keycloak distro to working dir
+  file:
+    state: "link"
+    src: "{{ keycloak_base_dir }}/keycloak-{{ keycloak_version }}"
+    dest: "{{ keycloak_working_dir }}"
+
+- name: Check admin account
+  command:
+    chdir: "{{ keycloak_working_dir }}/bin/"
+    cmd: >
+      ./kcadm.sh get users
+      --server http://localhost:8080/auth
+      --realm master --user {{ keycloak_admin_username }}
+      --password {{ keycloak_admin_password }}
+  register: kcadm_result
+  changed_when: false
+  failed_when: false
+
+- name: Create admin account
+  command:
+    chdir: "{{ keycloak_working_dir }}/bin/"
+    cmd: >
+      ./add-user-keycloak.sh
+      --realm master --user {{ keycloak_admin_username }}
+      --password {{ keycloak_admin_password }}
+  when: kcadm_result.rc != 0
+  notify:
+    - "start-keycloak"
+    - "restart-keycloak"
diff --git a/templates/keycloak.service.j2 b/templates/keycloak.service.j2
new file mode 100644
index 0000000..7f726e8
--- /dev/null
+++ b/templates/keycloak.service.j2
@@ -0,0 +1,19 @@
+{#
+SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+SPDX-License-Identifier: Apache-2.0
+#}
+
+[Unit]
+Description=Keycloak
+After=network.target
+
+[Service]
+Type=idle
+User={{ keycloak_username }}
+Group={{ keycloak_groupname }}
+ExecStart={{ keycloak_working_dir }}/bin/standalone.sh -b {{ keycloak_listen_address }}
+TimeoutStartSec=600
+TimeoutStopSec=600
+
+[Install]
+WantedBy=multi-user.target