monitoring:add grafama container build file

This commit provides the Makefile to create the
ceph-grafana containers for nautilus, octopus and
master releases.

Signed-off-by: Paul Cuzner <pcuzner@redhat.com>

diff --git a/monitoring/grafana/build/Makefile b/monitoring/grafana/build/Makefile
new file mode 100755 (executable)
index 0000000..93f53fe
--- /dev/null
+++ b/monitoring/grafana/build/Makefile
@@ -0,0 +1,97 @@
+
+GRAFANA_VERSION := 6.6.2-1
+PIECHART_VERSION := "1.4.0"
+STATUS_PANEL_VERSION := "1.0.9"
+DASHBOARD_DIR := "monitoring/grafana/dashboards"
+DASHBOARD_PROVISIONING := "ceph-dashboard.yml"
+IMAGE := "centos:8"
+VERSION := "${IMAGE: -1}"
+PKGMGR := "dnf"
+# CONTAINER := $(shell buildah from ${IMAGE})
+GF_CONFIG := "/etc/grafana/grafana.ini"
+ceph_version := "master"
+
+# Build a grafana instance - preconfigured for use within Ceph's dashboard UI
+
+build : fetch_dashboards
+       echo "Creating base container"
+       $(eval CONTAINER := $(shell buildah from ${IMAGE}))
+       # Using upstream grafana build
+       wget https://dl.grafana.com/oss/release/grafana-${GRAFANA_VERSION}.x86_64.rpm
+       #wget localhost:8000/grafana-${GRAFANA_VERSION}.x86_64.rpm
+       #cp grafana-${GRAFANA_VERSION}.x86_64.rpm ${mountpoint}/tmp/.
+       buildah copy $(CONTAINER) grafana-${GRAFANA_VERSION}.x86_64.rpm /tmp/grafana-${GRAFANA_VERSION}.x86_64.rpm 
+       buildah run $(CONTAINER) ${PKGMGR} install -y --setopt install_weak_deps=false --setopt=tsflags=nodocs /tmp/grafana-${GRAFANA_VERSION}.x86_64.rpm
+       buildah run $(CONTAINER) ${PKGMGR} clean all
+       buildah run $(CONTAINER) rm -f /tmp/grafana*.rpm
+       buildah run $(CONTAINER) grafana-cli plugins install grafana-piechart-panel ${PIECHART_VERSION}
+       buildah run $(CONTAINER) grafana-cli plugins install vonage-status-panel ${STATUS_PANEL_VERSION}
+       buildah run $(CONTAINER) mkdir -p /etc/grafana/dashboards/ceph-dashboard
+       buildah copy $(CONTAINER) jsonfiles/*.json /etc/grafana/dashboards/ceph-dashboard
+
+       @/bin/echo -e "\
+apiVersion: 1 \\n\
+providers: \\n\
+- name: 'Ceph Dashboard' \\n\
+  torgId: 1 \\n\
+  folder: 'ceph-dashboard' \\n\
+  type: file \\n\
+  disableDeletion: false \\n\
+  updateIntervalSeconds: 3 \\n\
+  editable: false \\n\
+  options: \\n\
+    path: '/etc/grafana/dashboards/ceph-dashboard'" >> ${DASHBOARD_PROVISIONING}
+
+
+       buildah copy $(CONTAINER) ${DASHBOARD_PROVISIONING} /etc/grafana/provisioning/dashboards/${DASHBOARD_PROVISIONING}
+
+       # expose tcp/3000 for grafana
+       buildah config --port 3000 $(CONTAINER)
+
+       # set working dir
+       buildah config --workingdir /usr/share/grafana $(CONTAINER)
+
+       # set environment overrides from the default locations in /usr/share
+       buildah config --env GF_PATHS_LOGS="/var/log/grafana" $(CONTAINER)
+       buildah config --env GF_PATHS_PLUGINS="/var/lib/grafana/plugins" $(CONTAINER)
+       buildah config --env GF_PATHS_PROVISIONING="/etc/grafana/provisioning" $(CONTAINER)
+       buildah config --env GF_PATHS_DATA="/var/lib/grafana" $(CONTAINER)
+
+       # entrypoint
+       buildah config --entrypoint "grafana-server --config=${GF_CONFIG}" $(CONTAINER)
+
+       # finalize
+       buildah config --label maintainer="Paul Cuzner <pcuzner@redhat.com>" $(CONTAINER)
+       buildah config --label description="Ceph Grafana Container" $(CONTAINER)
+       buildah config --label summary="Grafana Container configured for Ceph mgr/dashboard integration" $(CONTAINER)
+       buildah commit --format docker --squash $(CONTAINER) ceph-grafana:${ceph_version}
+       buildah tag ceph-grafana:${ceph_version} ceph/ceph-grafana:${ceph_version}
+
+
+fetch_dashboards: clean
+       wget -O - https://api.github.com/repos/ceph/ceph/contents/${DASHBOARD_DIR}?ref=${ceph_version} | jq '.[].download_url' > dashboards
+
+       # drop quotes from the list and pick out only json files
+       sed -i 's/\"//g' dashboards
+       sed -i '/\.json/!d' dashboards
+       mkdir jsonfiles 
+       while read -r line; do \
+               wget "$$line" -P jsonfiles; \
+       done < dashboards
+
+clean :
+       rm -f dashboards
+       rm -fr jsonfiles
+       rm -f grafana-*.rpm*
+       rm -f ${DASHBOARD_PROVISIONING}
+
+
+nautilus : 
+       $(MAKE) ceph_version="nautilus" build
+octopus : 
+       $(MAKE) ceph_version="octopus" build
+master : 
+       $(MAKE) ceph_version="master" build
+
+all : nautilus octopus master
+.PHONY : all 

diff --git a/monitoring/grafana/build/README.md b/monitoring/grafana/build/README.md
new file mode 100644 (file)
index 0000000..f77a40a
--- /dev/null
+++ b/monitoring/grafana/build/README.md
@@ -0,0 +1,37 @@
+# Building the ceph-grafana container image
+From Nautilus onwards, grafana is embedded into the mgr/dashboard UI and uses two discrete grafana plugins to provide visualisations within the UI. To better support disconnected installs, and provide a more tested configuration you may use the Makefile, in this directory, to (re)generate the grafana containers based on each Ceph release.
+
+The versions of grafana, and the plugins are defined in the script so testing can be done against a known configuration.  
+
+## Container
+The current implementation uses buildah with a CentOS8 base image. 
+
+## Dependencies
+Ensure you have the following dependencies installed on your system, before attempting to build the image(s)
+- podman or docker
+- buildah  
+- jq
+- make
+
+## Build Process
+The Makefile supports the following invocations;
+```
+# make                         <-- create container with dashboards from master 
+# make all
+# make ceph_version=octopus
+# make ceph_version=nautilus
+```
+
+Once complete, a ```make all``` execution will provide the following containers on your system.
+```
+# podman images
+REPOSITORY                    TAG        IMAGE ID       CREATED          SIZE
+localhost/ceph/ceph-grafana   master     606fa5444fc6   14 minutes ago   497 MB
+localhost/ceph-grafana        master     606fa5444fc6   14 minutes ago   497 MB
+localhost/ceph-grafana        octopus    580b089c14e7   15 minutes ago   497 MB
+localhost/ceph/ceph-grafana   octopus    580b089c14e7   15 minutes ago   497 MB
+localhost/ceph-grafana        nautilus   3c91712dd26f   17 minutes ago   497 MB
+localhost/ceph/ceph-grafana   nautilus   3c91712dd26f   17 minutes ago   497 MB
+registry.centos.org/centos    8          29d8fb6c94af   30 hours ago     223 MB
+
+```