Fix broken symlink python3 and unmet dependencies warnings. (#124)

Co-authored-by: peppepetra [email protected]

prometheus-openstack-exporter

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 """
 OpenStack exporter for the prometheus monitoring system.
 
@@ -1017,10 +1017,6 @@ class SwiftAccountUsage:
         return generate_latest(self.registry)
 
 
-class ForkingHTTPServer(ForkingMixIn, HTTPServer):  # noqa: D101
-    pass
-
-
 # This could perhaps be cleverer, but surely not simpler.
 COLLECTORS = {
     "cinder": Cinder,
@@ -1141,7 +1137,7 @@ if __name__ == "__main__":
     if data_gatherer_needed(config):
         data_gatherer = DataGatherer()
         data_gatherer.start()
-    server = ForkingHTTPServer(("", config.get("listen_port")), handler)
+    server = HTTPServer(("", config.get("listen_port")), handler)
     server.timeout = config.get("cache_refresh_interval", 900)
     while True:
         sleep(0)

snap/snapcraft.yaml

@@ -19,6 +19,19 @@ parts:
     build-packages:
       - build-essential
       - liberasurecode-dev
+      - libncursesw5
+      - libtinfo5
+      - libpython3-stdlib
+      - libpython3.8-minimal
+      - libpython3.8-stdlib
+      - python3.8-minimal
+      - python3-distutils
+      - python3-minimal
+      - python3-pkg-resources
+      - python3-pip
+      - python3-setuptools
+      - python3-venv
+      - python3-wheel
     stage-packages:
       - libdb5.3
       - liberasurecode-dev

snap_cmd_wrapper

@@ -5,4 +5,4 @@
 # Copy only if not existing
 cp -pn $SNAP/etc/prometheus/prometheus-openstack-exporter.yaml.example $SNAP_DATA/prometheus-openstack-exporter.yaml
 test -r $SNAP_DATA/admin.novarc && . $SNAP_DATA/admin.novarc
-exec $SNAP/bin/prometheus-openstack-exporter $SNAP_DATA/prometheus-openstack-exporter.yaml
+exec $SNAP/bin/python3 $SNAP/bin/prometheus-openstack-exporter $SNAP_DATA/prometheus-openstack-exporter.yaml