Initial commit of Gerrit ansible role

Change-Id: Id425e46f9e5eb83ca9d8aad0cd9b8ba491c6433c
diff --git a/.cookiecutter_params.json b/.cookiecutter_params.json
new file mode 100644
index 0000000..3f672b9
--- /dev/null
+++ b/.cookiecutter_params.json
@@ -0,0 +1,24 @@
+{
+    "_template": "../cookiecutters/role/",
+    "author": "Open Networking Foundation",
+    "company": "Open Networking Foundation",
+    "description": "Gerrit Code Review",
+    "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": {
+        "Ubuntu": [
+            "16.04",
+            "18.04"
+        ]
+    },
+    "role_defaults": {
+        "example_default1": "example_value1",
+        "example_default2": "example_value2"
+    },
+    "role_name": "gerrit",
+    "year": "2020"
+}
diff --git a/.gitreview b/.gitreview
new file mode 100644
index 0000000..641385f
--- /dev/null
+++ b/.gitreview
@@ -0,0 +1,5 @@
+[gerrit]
+host=gerrit.opencord.org
+port=29418
+project=ansible/role/gerrit.git
+defaultremote=origin
diff --git a/.reuse/dep5 b/.reuse/dep5
new file mode 100644
index 0000000..36ce305
--- /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: 2020 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..337beea
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,39 @@
+# gerrit Makefile
+#
+# SPDX-FileCopyrightText: © 2020 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 gerrit 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
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--- /dev/null
+++ b/README.md
@@ -0,0 +1,47 @@
+<!--
+SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+SPDX-License-Identifier: Apache-2.0
+--!>
+# gerrit
+
+Gerrit Code Review
+
+NOTE: This role currently prepares the system for installing gerrit, but does
+not actually install the daemon, which is done manually.. In the future it may
+be expanded to do this as well, most likely from the [package
+repos](https://gerrit.googlesource.com/gerrit/#install-binary-packages-deb_rpm).
+
+Currently, all this role does is creates the gerrit user account, data
+directories, and scripts to start the gerrit daemon.
+
+The rest of the configuration needs to be run *as the gerrit user* so that file
+permissions are correctly maintained.  As this user is intended just to run the
+daemon and configured with a `nologin` shell, it's recommended that you become
+the gerrit user with:
+
+    su -s /bin/bash gerrit
+
+Gerrit requires a JRE (or JDK) to run, which should be installed by a separate
+role.
+
+## Requirements
+
+Minimum ansible version: 2.9.5
+
+## Defaults
+
+Default values can be found in `defaults/main.yml`
+
+## Example Playbook
+
+```yaml
+- hosts: all
+  roles:
+    - gerrit
+```
+
+## License and Author
+
+© 2020 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..88eefc2
--- /dev/null
+++ b/defaults/main.yml
@@ -0,0 +1,14 @@
+---
+# gerrit defaults/main.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+gerrit_username: "gerrit"
+gerrit_groupname: "gerrit"
+gerrit_comment: "Gerrit Code Review"
+
+gerrit_home_dir: "/opt/gerrit"
+gerrit_data_dir: "/srv/gerrit"
+
+gerrit_java_opts: ''
diff --git a/handlers/main.yml b/handlers/main.yml
new file mode 100644
index 0000000..cce284a
--- /dev/null
+++ b/handlers/main.yml
@@ -0,0 +1,5 @@
+---
+# gerrit handlers/main.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
diff --git a/meta/main.yml b/meta/main.yml
new file mode 100644
index 0000000..c26dce7
--- /dev/null
+++ b/meta/main.yml
@@ -0,0 +1,27 @@
+---
+# gerrit meta/main.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+galaxy_info:
+  author: Open Networking Foundation
+  description: Gerrit Code Review
+  company: Open Networking Foundation
+
+  issue_tracker_url: https://jira.opennetworking.org/
+
+  license: Apache-2.0
+
+  min_ansible_version: 2.9.5
+
+  platforms:
+    - name: Ubuntu
+      versions:
+        - "16.04"
+        - "18.04"
+
+  galaxy_tags:
+    - gerrit
+
+dependencies: []
diff --git a/molecule/default/converge.yml b/molecule/default/converge.yml
new file mode 100644
index 0000000..acd8b67
--- /dev/null
+++ b/molecule/default/converge.yml
@@ -0,0 +1,12 @@
+---
+# gerrit molecule/default/verify.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+- name: Converge
+  hosts: all
+  tasks:
+    - name: "Include gerrit"
+      include_role:
+        name: "gerrit"
diff --git a/molecule/default/molecule.yml b/molecule/default/molecule.yml
new file mode 100644
index 0000000..d248288
--- /dev/null
+++ b/molecule/default/molecule.yml
@@ -0,0 +1,20 @@
+---
+# gerrit molecule/default/molecule.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+dependency:
+  name: galaxy
+driver:
+  name: docker
+platforms:
+  - name: "ubuntu-18.04-priv"
+    image: "quay.io/paulfantom/molecule-systemd:ubuntu-18.04"
+    privileged: true
+    volumes:
+      - "/sys/fs/cgroup:/sys/fs/cgroup:ro"
+provisioner:
+  name: ansible
+verifier:
+  name: ansible
diff --git a/molecule/default/verify.yml b/molecule/default/verify.yml
new file mode 100644
index 0000000..faef44f
--- /dev/null
+++ b/molecule/default/verify.yml
@@ -0,0 +1,12 @@
+---
+# gerrit molecule/default/verify.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+- name: Verify
+  hosts: all
+  tasks:
+  - name: example assertion
+    assert:
+      that: true
diff --git a/tasks/Debian.yml b/tasks/Debian.yml
new file mode 100644
index 0000000..60111a9
--- /dev/null
+++ b/tasks/Debian.yml
@@ -0,0 +1,21 @@
+---
+# gerrit tasks/Debian.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+- name: Create environment config for Gerrit service
+  template:
+    src: "default.gerritcodereview.j2"
+    dest: "/etc/default/gerritcodereview"
+    owner: "root"
+    group: "root"
+    mode: "0644"
+
+- name: Create systemd service unit file for Gerrit
+  template:
+    src: "gerrit.service.j2"
+    dest: "/etc/systemd/system/gerrit.service"
+    owner: "root"
+    group: "root"
+    mode: "0644"
diff --git a/tasks/main.yml b/tasks/main.yml
new file mode 100644
index 0000000..d8d7f91
--- /dev/null
+++ b/tasks/main.yml
@@ -0,0 +1,43 @@
+---
+# gerrit tasks/main.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+- name: include OS-specific vars
+  include_vars: "{{ ansible_os_family }}.yml"
+
+- name: include OS-specific tasks
+  include_tasks: "{{ ansible_os_family }}.yml"
+
+- name: Create group for gerrit
+  group:
+    name: "{{ gerrit_groupname }}"
+
+- name: Create user for gerrit
+  user:
+    name: "{{ gerrit_username }}"
+    group: "{{ gerrit_groupname }}"
+    comment: "{{ gerrit_comment }}"
+    shell: "{{ gerrit_shell }}"
+    home: "{{ gerrit_home_dir }}"
+    create_home: no  # yamllint disable-line rule:truthy
+    password_lock: true
+
+- name: Create gerrit home dir
+  file:
+    path: "{{ gerrit_home_dir }}"
+    state: directory
+    owner: "{{ gerrit_username }}"
+    group: "{{ gerrit_groupname }}"
+    mode: "0750"
+
+- name: Create gerrit data dir
+  file:
+    path: "{{ gerrit_data_dir }}"
+    state: directory
+    owner: "{{ gerrit_username }}"
+    group: "{{ gerrit_groupname }}"
+    mode: "0750"
+
+# rest of install is manual, but could be automated...
diff --git a/templates/default.gerritcodereview.j2 b/templates/default.gerritcodereview.j2
new file mode 100644
index 0000000..61c750e
--- /dev/null
+++ b/templates/default.gerritcodereview.j2
@@ -0,0 +1,7 @@
+{#
+SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+SPDX-License-Identifier: Apache-2.0
+#}
+# /etc/default/gerritcodereview - {{ ansible_managed }}
+GERRIT_SITE={{ gerrit_home_dir }}
+JAVA_OPTIONS='{{ gerrit_java_opts }}'
diff --git a/templates/gerrit.service.j2 b/templates/gerrit.service.j2
new file mode 100644
index 0000000..063bc38
--- /dev/null
+++ b/templates/gerrit.service.j2
@@ -0,0 +1,18 @@
+{#
+SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+SPDX-License-Identifier: Apache-2.0
+#}
+# /etc/systemd/system/gerrit.service - {{ ansible_managed }}
+[Unit]
+Description=Gerrit Code Review
+After=network.target
+
+[Service]
+EnvironmentFile=/etc/default/gerritcodereview
+SyslogIdentifier=gerrit
+ExecStart=/usr/bin/java $JAVA_OPTIONS -jar {{ gerrit_home_dir }}/bin/gerrit.war daemon -d $GERRIT_SITE
+User={{ gerrit_username }}
+Group={{ gerrit_groupname }}
+
+[Install]
+WantedBy=multi-user.target
diff --git a/vars/Debian.yml b/vars/Debian.yml
new file mode 100644
index 0000000..4851521
--- /dev/null
+++ b/vars/Debian.yml
@@ -0,0 +1,11 @@
+---
+# gerrit vars/Debian.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+#
+# NOTE: Only put platform/OS-specific variables in this file.
+# Put all other variables in the 'defaults/main.yml' file.
+
+# shell used by the gerrit user (non-interactive)
+gerrit_shell: "/usr/sbin/nologin"