Add InfluxDB service

Change-Id: I580a08984beadbf2684615ddb43fb92c8328b9b7

docker/influxdb/Dockerfile.j2

@@ -0,0 +1,17 @@
+FROM {{ namespace }}/base-tools:{{ tag }}
+MAINTAINER {{ maintainer }}
+
+# NOTE(elemoine): the InfluxDB package is downloaded from dl.influxdb.com. Do
+# we want to host the package instead?
+
+RUN gpg \
+        --keyserver hkp://ha.pool.sks-keyservers.net \
+        --recv-keys 05CE15085FC09D18E99EFB22684A14CF2582E0C5 \
+    && curl https://dl.influxdata.com/influxdb/releases/influxdb_{{ influxdb_version }}_amd64.deb.asc -o /tmp/influxdb.deb.asc \
+    && curl https://dl.influxdata.com/influxdb/releases/influxdb_{{ influxdb_version }}_amd64.deb -o /tmp/influxdb.deb \
+    && gpg --batch --verify /tmp/influxdb.deb.asc /tmp/influxdb.deb \
+    && dpkg -i /tmp/influxdb.deb \
+    && chown -R influxdb: /etc/influxdb \
+    && rm -f /tmp/influxdb.deb.asc /tmp/influxdb.deb
+
+USER influxdb

service/files/defaults.yaml

@@ -5,3 +5,6 @@ configs:
   heka_max_procs: 2
   heka_log_directory_root: "/var/log"
   heka_service_pattern: "^k8s_(.-)%..*"
+  influxdb_port: 8086
+versions:
+    influxdb_version: "0.13.0"

service/files/influxdb.conf.j2

@@ -0,0 +1,17 @@
+reporting-disabled = true
+
+[meta]
+  dir = "/var/lib/influxdb/meta"
+
+[data]
+  engine = "tsm1"
+  dir = "/var/lib/influxdb/data"
+  wal-dir = "/var/lib/influxdb/wal"
+
+[admin]
+  enabled = true
+
+[http]
+  auth-enabled = false  # FIXME(elemoine)
+  bind-address = "{{ network_topology["private"]["address"] }}:{{ influxdb_port }}"
+  log-enabled = false

service/influxdb.yaml

@@ -0,0 +1,25 @@
+service:
+  name: influxdb
+  node-selector:
+    openstack-controller: "true"
+  ports:
+    - influxdb_port
+  containers:
+    - name: influxdb
+      image: influxdb
+      probes:
+        readiness: "true"
+        liveness: "true"
+      daemon:
+        command: influxd -config /etc/influxdb/influxdb.conf
+        files:
+          - influxdb.conf
+      volumes:
+        - name: influxdb-data
+          type: empty-dir
+          path: /var/lib/influxdb
+files:
+  influxdb.conf:
+    path: /etc/influxdb/influxdb.conf
+    content: influxdb.conf.j2
+    perm: "0600"