Create config panel

actions.json

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+[{
+        "id": "update_turnserver_ip",
+        "name": "Update turnserver ip",
+        "command": "/opt/yunohost/matrix-$YNH_APP_ID/Coturn_config_rotate.sh",
+        "user": "root",
+        "accepted_return_codes": [0],
+        "description": {
+            "en": "Update the ip in the turnserver config"
+        }
+},
+{
+        "id": "open_turnserver_firewall_ports",
+        "name": "Open ports for turnserver",
+        "command": "yunohost firewall allow Both 49153:49193",
+        "user": "root",
+        "accepted_return_codes": [0],
+        "description": {
+            "en": "Open the ports range 49153:49193 with TCP and UDP to be able to use correctly the turnserver."
+        }
+}]

config_panel.json

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+{
+    "name": "Synapse configuration panel",
+    "version": "0.1",
+    "panel": [{
+        "name": "Synapse config",
+        "id": "synapse_config",
+        "sections": [{
+            "name": "Synapse server configuration",
+            "id": "server_config",
+            "options": [{
+                "name": "Server statistics",
+                "id": "server_statistics",
+                "type": "bool",
+                "help": "True to send anonymous statistics about synapse to improve the performances",
+                "default": false
+            }]
+        }]
+    },{
+        "name": "Package config",
+        "id": "package_config",
+        "sections": [{
+            "name": "Synapse server configuration",
+            "id": "package_config",
+            "options": [{
+                "name": "Backup before upgrade",
+                "id": "backup_before_upgrade",
+                "type": "bool",
+                "help": "True to do a backup before every upgrade",
+                "default": false
+            }]
+        }]
+    }]
+}

scripts/config

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+#!/bin/bash
+
+#=================================================
+# GENERIC START
+#=================================================
+# IMPORT GENERIC HELPERS
+#=================================================
+
+source /usr/share/yunohost/helpers
+
+# Stop script if errors
+ynh_abort_if_errors
+
+# Import common fonctions
+source ./psql.sh
+source ./experimental_helper.sh
+source ./_common.sh
+
+#=================================================
+# RETRIEVE ARGUMENTS
+#=================================================
+
+app=$YNH_APP_ID
+
+#=================================================
+# SHOW_CONFIG FUNCTION FOR 'SHOW' COMMAND
+#=================================================
+
+show_config() {
+    # here you are supposed to read some config file/database/other then print the values
+    # echo "YNH_CONFIG_${PANEL_ID}_${SECTION_ID}_${OPTION_ID}=value"
+    echo "YNH_CONFIG_SYNAPSE_CONFIG_SERVER_CONFIG_SERVER_STATISTICS=$(ynh_app_setting_get $app report_stats)"
+
+    backup_before_upgrade=$(ynh_app_setting_get $app disable_backup_before_upgrade)
+    if [[ ${backup_before_upgrade:-0} -eq 1 ]]
+    then
+        echo "YNH_CONFIG_PACKAGE_CONFIG_PACKAGE_CONFIG_BACKUP_BEFORE_UPGRADE=False"
+    else
+        echo "YNH_CONFIG_PACKAGE_CONFIG_PACKAGE_CONFIG_BACKUP_BEFORE_UPGRADE=True"
+    fi
+}
+
+#=================================================
+# MODIFY THE CONFIGURATION
+#=================================================
+
+apply_config() {
+    ynh_app_setting_set $app report_stats $YNH_CONFIG_SYNAPSE_CONFIG_SERVER_CONFIG_SERVER_STATISTICS
+
+    if ${YNH_CONFIG_PACKAGE_CONFIG_PACKAGE_CONFIG_BACKUP_BEFORE_UPGRADE,,}
+    then
+        ynh_app_setting_set $app disable_backup_before_upgrade 0
+    else
+        ynh_app_setting_set $app disable_backup_before_upgrade 1
+    fi
+}
+
+#=================================================
+# GENERIC FINALIZATION
+#=================================================
+# SELECT THE ACTION FOLLOWING THE GIVEN ARGUMENT
+#=================================================
+case $1 in
+    show) show_config;;
+    apply) apply_config;;
+esac