Add Monasca Grafana image

This provides support for building the Monasca fork of Grafana
which features Keystone integration.

It is primarily for use with the Monasca Grafana datasource, although
other datasources can be installed if required.

In the future it would be more efficient to build and host the packages
externally.

Implements: blueprint monasca-grafana
Change-Id: I6cb175868d1993ae31700de36b721f4833c4164b

docker/monasca/monasca-grafana/Dockerfile.j2

@@ -0,0 +1,81 @@
+FROM {{ namespace }}/{{ image_prefix }}base:{{ tag }}
+LABEL maintainer="{{ maintainer }}" name="{{ image_name }}" build-date="{{ build_date }}"
+
+{% block monasca_grafana_header %}{% endblock %}
+
+{% import "macros.j2" as macros with context %}
+
+{{ macros.configure_user(name='monasca', homedir='/usr/share/grafana') }}
+
+{% if base_distro in ['centos', 'oraclelinux', 'rhel'] %}
+    {% set monasca_grafana_build_packages = [
+        'golang',
+        'git',
+        'npm',
+        'bzip2',
+        'gcc-c++',
+        'make',
+        'ruby',
+        'ruby-devel',
+        'fontconfig',
+        'rpm-build'
+     ] %}
+{% elif base_distro in ['debian', 'ubuntu'] %}
+    {% set monasca_grafana_build_packages = [
+        'golang',
+        'git',
+        'npm',
+        'bzip2',
+        'g++',
+        'make',
+        'ruby',
+        'ruby-dev',
+        'fontconfig',
+        'rpm'
+     ] %}
+{% endif %}
+
+{{ macros.install_packages(monasca_grafana_build_packages | customizable("packages")) }}
+
+WORKDIR /usr/share/grafana
+
+COPY grafana_sudoers /etc/sudoers.d/kolla_grafana_sudoers
+COPY extend_start.sh /usr/local/bin/kolla_extend_start
+
+ENV GO_PATH=/grafana
+ENV monasca_grafana_build_path=${GO_PATH}/src/github.com/grafana/grafana
+ARG monasca_grafana_version=grafana4
+ARG monasca_grafana_url=https://github.com/monasca/grafana/archive/$monasca_grafana_version.tar.gz
+
+{% block monasca_grafana_install %}
+RUN gem install fpm \
+    && curl -sSL -o /tmp/monasca-grafana.tgz ${monasca_grafana_url} \
+    && mkdir -p ${monasca_grafana_build_path} \
+    && tar --strip 1 -xvf /tmp/monasca-grafana.tgz -C ${monasca_grafana_build_path} \
+    && rm -f /tmp/monasca-grafana.tgz \
+    && cd ${monasca_grafana_build_path} \
+    && go run build.go setup \
+    && npm install \
+    && go run build.go build package \
+    && mv ${monasca_grafana_build_path}/dist /grafana_pkgs \
+    && rm -rf /grafana
+
+{% if base_distro in ['centos', 'oraclelinux', 'rhel'] %}
+  {% set monasca_grafana_packages = ['/grafana_pkgs/grafana*.rpm'] %}
+{% elif base_distro in ['debian', 'ubuntu'] %}
+  {% set monasca_grafana_packages = ['/grafana_pkgs/grafana*.deb'] %}
+{% endif %}
+
+{{ macros.install_packages(monasca_grafana_packages | customizable("packages")) }}
+
+{% endblock %}
+
+RUN grafana-cli plugins install monasca-datasource \
+    && chmod 750 /etc/sudoers.d \
+    && chmod 440 /etc/sudoers.d/kolla_grafana_sudoers \
+    && chmod 755 /usr/local/bin/kolla_extend_start
+
+{% block monasca_grafana_footer %}{% endblock %}
+{% block footer %}{% endblock %}
+
+USER monasca

docker/monasca/monasca-grafana/extend_start.sh

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+#!/bin/bash
+
+if [[ ! -d "/var/log/kolla/monasca" ]]; then
+    mkdir -p /var/log/kolla/monasca
+fi
+if [[ $(stat -c %a /var/log/kolla/monasca) != "755" ]]; then
+    chmod 755 /var/log/kolla/monasca
+fi

docker/monasca/monasca-grafana/grafana_sudoers

@@ -0,0 +1 @@
+%kolla ALL=(root) NOPASSWD: /usr/bin/chown -R monasca\: /var/lib/grafana/, /bin/chown -R monasca\: /var/lib/grafana/

releasenotes/notes/add-monasca-grafana-868f1dd95725a030.yaml

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+---
+features:
+  - |
+    Add the Monasca fork of Grafana (v4.0.1). The Monasca fork of Grafana
+    adds Keystone integration, allowing Grafana users to log in with their
+    OpenStack credentials and see Metrics from their OpenStack project.