Drop prometheus-msteams container images

The prometheus-msteams project is no longer maintained [1]. As a result
we are removing its associated container images from our repository.
Users are encouraged to switch to the native Prometheus Alertmanager
integration with Microsoft Teams [2], which offers ongoing support and
features.

[1] https://github.com/prometheus-msteams/prometheus-msteams/issues/343
[2] https://prometheus.io/docs/alerting/latest/configuration/#msteams_config

Change-Id: I66421b14668722607b58865a2ad100204fd387f7

docker/prometheus/prometheus-msteams/Dockerfile.j2

@@ -1,19 +0,0 @@
-FROM {{ namespace }}/{{ image_prefix }}prometheus-base:{{ tag }}
-{% block labels %}
-LABEL maintainer="{{ maintainer }}" name="{{ image_name }}" build-date="{{ build_date }}"
-{% endblock %}
-
-{% block prometheus_msteams_header %}{% endblock %}
-
-{% block prometheus_msteams_install %}
-ADD prometheus-msteams-archive /prometheus-msteams-source
-
-RUN cp /prometheus-msteams-source /opt/prometheus-msteams \
-    && chmod 0755 /opt/prometheus-msteams \
-    && mkdir -p /etc/msteams
-{% endblock %}
-
-{% block prometheus_msteams_footer %}{% endblock %}
-{% block footer %}{% endblock %}
-
-USER prometheus

kolla/common/sources.py

@@ -335,16 +335,6 @@ SOURCES = {
                      'releases/download/v${version}/'
                      'memcached_exporter'
                      '-${version}.linux-${debian_arch}.tar.gz')},
-    'prometheus-msteams': {
-        'version': '1.5.2',
-        'type': 'url',
-        'sha256': {
-            'amd64': '0f4df9ee31e655d1ec876ea2c53ab5ae5b07143ef21b9190e61b4d52839e135c'},  # noqa: E501
-        'location': ('https://github.com/'
-                     'prometheus-msteams/prometheus-msteams/'
-                     'releases/download/v${version}/'
-                     'prometheus-msteams'
-                     '-linux-${debian_arch}')},
     'prometheus-mtail': {
         'version': '3.0.0-rc54',
         'type': 'url',

kolla/image/unbuildable.py

@@ -17,7 +17,6 @@
 UNBUILDABLE_IMAGES = {
     'aarch64': {
         "bifrost-base",        # someone need to get upstream working first
-        "prometheus-msteams",  # no aarch64 binary
         "prometheus-mtail",    # no aarch64 binary
     },
 

releasenotes/notes/drop-prometheus-msteams-1ead141af684ada1.yaml

@@ -0,0 +1,8 @@
+---
+upgrade:
+  - |
+    The ``prometheus-msteams`` container images have been removed as the
+    project is no longer maintained. Users should migrate to the `native
+    Prometheus Alertmanager integration with Microsoft Teams
+    <https://prometheus.io/docs/alerting/latest/configuration/#msteams_config>`__
+    for continued support and features.