podmand: workaround for podman pod support

rootless containers in podman can comunicate in two ways, the prefered
(but currently have bug and not working) is with a shared pod.

The alternative is using a host ip.
Until the bug in podman is solved and in a release, this patch uses an
arbitrary ip address of the host (the host can have multiple interfaces
anyone would do).

start-alertmanager.sh

@@ -5,6 +5,7 @@ if [ "$1" = "-e" ]; then
 else
 . versions.sh
 fi
+is_podman="$(docker --help | grep -o podman)"
 VERSIONS=$DEFAULT_VERSION
 RULE_FILE=$PWD/prometheus/rule_config.yml
 ALERT_MANAGER_VERSION="v0.20.0"
@@ -85,4 +86,8 @@ then
 fi
 
 AM_ADDRESS="$(docker inspect --format '{{ .NetworkSettings.IPAddress }}' $ALERTMANAGER_NAME):9093"
+if [ ! -z "$is_podman" ] && [ "$AM_ADDRESS" = ":9093" ]; then
+    HOST_IP=`hostname -I | awk '{print $1}'`
+    AM_ADDRESS="$HOST_IP:9093"
+fi
 echo $AM_ADDRESS

start-all.sh

@@ -275,6 +275,10 @@ fi
 # Can't use localhost here, because the monitoring may be running remotely.
 # Also note that the port to which we need to connect is 9090, regardless of which port we bind to at localhost.
 DB_ADDRESS="$(docker inspect --format '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' $PROMETHEUS_NAME):9090"
+if [ ! -z "$is_podman" ] && [ "$DB_ADDRESS" = ":9090" ]; then
+    HOST_IP=`hostname -I | awk '{print $1}'`
+    DB_ADDRESS="$HOST_IP:9090"
+fi
 
 for val in "${GRAFANA_ENV_ARRAY[@]}"; do
         GRAFANA_ENV_COMMAND="$GRAFANA_ENV_COMMAND -c $val"