Merge ~sergiodj/prometheus-snap:rock into prometheus-snap:21.10

[Sergio Durigan Junior]

This MP serves two purposes:

- It updates the prometheus-alertmanager snap to the latest upstream version (2.33.5)

- It it the starting point of the new "rock" branch that will be used to release this snap from now on. For more information, see:

https://forum.snapcraft.io/t/improvements-on-rocks-snap-tracks/29046

I took the opportunity to also:

- Update nodejs to the latest LTS version (16.14.0)

- Remove a (now unnecessary) hack used to make the snap build with a previous upstream version. This bug has since been fixed.

Everything builds fine and my local test also succeeded.

Unmerged commits

1815ae0... by Sergio Durigan Junior on 2022-03-09

Update prometheus-alertmanager to 2.33.5

- Also update nodejs to 16.14.0 (latest LTS version).

- Remove unnecessary hack to fix bug with previous
  prometheus-alertmanager release, since it's been fixed in this new
  version.

Signed-off-by: Sergio Durigan Junior <email address hidden>

1b20947... by Sergio Durigan Junior on 2022-01-20

Temporarily disable template_test.go

This test is failing on non-amd64 architectures, but it's very likely
that the cause is the architecture-dependent way that Go treats
conversions between floats and ints. For more details, see:

https://github.com/prometheus/prometheus/issues/10185

Signed-off-by: Sergio Durigan Junior <email address hidden>

0e19ffe... by Sergio Durigan Junior on 2022-01-18

Update prometheus to 2.32.1.

This required:

- A new NodeJS (version 16).

- A new Go (version 17).

- A change in the order of our build commands. We were running the
  tests and then building the software, but that doesn't work anymore.

Signed-off-by: Sergio Durigan Junior <email address hidden>

diff --git a/snapcraft.yaml b/snapcraft.yaml
index e0c6783..fb2e8b7 100644
--- a/snapcraft.yaml
+++ b/snapcraft.yaml
@@ -1,5 +1,5 @@
 name: prometheus
-version: 2.28.1
+version: 2.33.5
 base: core20
 grade: stable
 summary: The Prometheus monitoring system and time series database
@@ -30,13 +30,13 @@ plugs:
 parts:
   prometheus:
     plugin: go
-    go-channel: 1.14/stable
+    go-channel: 1.17/stable
     source: https://github.com/prometheus/prometheus.git
     source-tag: v${SNAPCRAFT_PROJECT_VERSION}
     build-packages: [build-essential, curl, make, wget]
     override-build: |
         set -x
-        NODE_VERSION=14.17.4
+        NODE_VERSION=16.14.0
         NODE_ARCH=$(dpkg --print-architecture)
         case "${NODE_ARCH}" in
           "amd64")
@@ -52,8 +52,8 @@ parts:
         export PATH=/usr/local/lib/nodejs/node-v${NODE_VERSION}-linux-${NODE_ARCH}/bin:$PATH
         NODE_ENV="production"
         npm install yarn -g
-        make common-test-short
         make build
+        make common-test-short
         mkdir -p $SNAPCRAFT_PART_INSTALL/bin
         mkdir -p $SNAPCRAFT_PART_INSTALL/etc/prometheus
         cp -p $SNAPCRAFT_PART_BUILD/promtool $SNAPCRAFT_PART_INSTALL/bin/