new: [opensem] add charm

opensem/hooks/smtp_server-relation-joined

@@ -0,0 +1,66 @@
+#!/bin/bash
+
+. lib/common
+
+set -e
+
+host=$(relation-get host)
+port=$(relation-get port)
+connection_security=$(relation-get connection-security)
+auth_method=$(relation-get auth-method)
+
+
+
+
+declare -A ENV
+
+ENV[DRIVER]=smtp
+ENV[HOST]="$host"
+ENV[PORT]="$port"
+
+case "$connection_security" in
+    "none")
+        ENV[ENCRYPTION]=null
+        ;;
+    "ssl/tls")
+        ENV[ENCRYPTION]="tls"
+        ;;
+    "ssl")
+        ENV[ENCRYPTION]="ssl"
+        ;;
+    *)
+        error "Unsupported connection security: $connection_security"
+        exit 1
+        ;;
+esac
+case "$auth_method" in
+    "none")
+        ENV[USERNAME]=null
+        ;;
+    "password")
+        login=$(relation-get login) || true
+        ENV[USERNAME]="$login"
+
+        password=$(relation-get password) || true
+        ENV[PASSWORD]="$password"
+        ;;
+    *)
+        error "Unsupported auth method: $auth_method"
+        exit 1
+        ;;
+esac
+
+mail_from=$(relation-get mail-from) || true
+if [ -n "$mail_from" ]; then
+    ENV[FROM_ADDRESS]="$mail_from"
+fi
+
+from_name=$(relation-get from-name) || true
+if [ -n "$from_name" ]; then
+   ENV[FROM_NAME]="$from_name"
+fi
+
+for key in "${!ENV[@]}"; do
+    value=${ENV[$key]}
+    opensem:config-set "MAIL_$key" "$value"
+done