Merge ~jacekn/prometheus-alertmanager-snap:master into ~canonical-is-sa/prometheus-alertmanager-snap:master

[Jacek Nykis]

Updates to build alertmanager 0.8.0

diff --git a/snapcraft.yaml b/snapcraft.yaml
index ef88870..88eefbe 100644
--- a/snapcraft.yaml
+++ b/snapcraft.yaml
@@ -1,5 +1,6 @@
 name: prometheus-alertmanager
-version: master
+version: 0.8.0
+grade: stable
 summary: The Prometheus alertmanager
 description: |
   The Alertmanager handles alerts sent by client applications such as the Prometheus server. It takes care of deduplicating, grouping, and routing them to the correct receiver integration such as email, PagerDuty, or OpsGenie. It also takes care of silencing and inhibition of alerts.
@@ -13,14 +14,26 @@ parts:
   alertmanager:
     plugin: go
     source: https://github.com/prometheus/alertmanager.git
+    source-tag: v0.8.0
     go-importpath: github.com/prometheus/alertmanager
     go-packages: [github.com/prometheus/alertmanager/cmd/alertmanager]
+    build-packages: [golang-1.8]
+    build: |
+        # Make sure we use go 1.8
+        export "PATH=/usr/lib/go-1.8/bin/:$PATH"
+        export "GOPATH=$PWD/../go" "PATH=$PATH:$PWD/../go/bin"
+        cd ../go/src/github.com/prometheus/alertmanager/
+        make build
+    install: |
+        mkdir $SNAPCRAFT_PART_INSTALL/bin
+        cp -p $SNAPCRAFT_PART_INSTALL/../src/alertmanager $SNAPCRAFT_PART_INSTALL/bin/
   example-config:
     plugin: dump
     source: https://github.com/prometheus/alertmanager.git
+    source-tag: v0.8.0
     organize:
       doc/examples/simple.yml: etc/prometheus/alertmanager.yml.example
-    snap:
+    prime:
       - etc/prometheus/alertmanager.yml.example
   snap-wrappers:
     plugin: dump
@@ -28,6 +41,6 @@ parts:
     organize:
       snap_config_wrapper: bin/prometheus-alertmanager.wrapper
       daemon_arguments: etc/prometheus/daemon_arguments.example
-    snap:
+    prime:
       - bin/prometheus-alertmanager.wrapper
       - etc/prometheus/daemon_arguments.example