feat: add base URL for the frontend and backend of Alerta

CHANGELOG.md

@@ -1,3 +1,7 @@
+## v3.2.2
+### Feat
+- add subpath/base url for frontend
+
 ## v3.2.1
 ### Fix
 - change status from wildcard to exact match in alert and history filter

Dockerfile

@@ -23,6 +23,7 @@ ENV UWSGI_LISTEN=100
 ENV UWSGI_BUFFER_SIZE=8192
 ENV UWSGI_MAX_WORKER_LIFETIME=30
 ENV UWSGI_WORKER_LIFETIME_DELTA=3
+ENV FRONTEND_BASE_URL=/
 
 ENV HEARTBEAT_SEVERITY=major
 

config/templates/app/alerta.conf.j2

@@ -1,7 +1,7 @@
 [DEFAULT]
 sslverify = no
 output = presto
-endpoint = http://localhost:8080/api
+endpoint = http://localhost:8080{{ env.FRONTEND_BASE_URL }}api
 timezone = Europe/London
 {%- if env.API_KEY %}
 key = {{ env.API_KEY }}

config/templates/app/nginx.conf.j2

@@ -46,7 +46,7 @@ http {
 
         access_log /dev/stdout main;
 
-        location /api {
+        location {{ env.FRONTEND_BASE_URL }}api {
             include /etc/nginx/uwsgi_params;
             uwsgi_pass backend;
 
@@ -58,8 +58,9 @@ http {
 
         root /web;
         index index.html;
-        location / {
-            try_files $uri $uri/ /index.html;
+
+        location {{ env.FRONTEND_BASE_URL }} {
+            try_files $uri $uri/ {{ env.FRONTEND_BASE_URL }}index.html;
         }
     }
 }

config/templates/app/uwsgi.ini.j2

@@ -4,7 +4,7 @@ log-route = info ^\D
 chdir = /app
 module = wsgi
 manage-script-name = true
-mount = /api=wsgi:app
+mount = {{ env.FRONTEND_BASE_URL }}api=wsgi:app
 master = true
 processes = {{ env.UWSGI_PROCESSES }}
 listen = {{ env.UWSGI_LISTEN }}

config/templates/web/config.json.j2

@@ -1 +1,4 @@
-{"endpoint": "/api"}
+{
+  "endpoint": "{{ env.FRONTEND_BASE_URL }}api",
+  "base": "{{ env.FRONTEND_BASE_URL }}"
+}

docker-entrypoint.sh

@@ -4,7 +4,7 @@ JINJA2="import os, sys, jinja2; sys.stdout.write(jinja2.Template(sys.stdin.read(
 
 ALERTA_CONF_FILE=${ALERTA_CONF_FILE:-/app/alerta.conf}
 ALERTA_SVR_CONF_FILE=${ALERTA_SVR_CONF_FILE:-/app/alertad.conf}
-ALERTA_WEB_CONF_FILE=${ALERTA_WEB_CONF_FILE:-/web/config.json}
+ALERTA_WEB_CONF_FILE=/web${FRONTEND_BASE_URL}config.json
 NGINX_CONF_FILE=/app/nginx.conf
 UWSGI_CONF_FILE=/app/uwsgi.ini
 SUPERVISORD_CONF_FILE=/app/supervisord.conf
@@ -76,6 +76,11 @@ if [ ! -f "${UWSGI_CONF_FILE}" ]; then
   python3 -c "${JINJA2}" < ${UWSGI_CONF_FILE}.j2 >${UWSGI_CONF_FILE}
 fi
 
+if [ ! -d "/web${FRONTEND_BASE_URL}" ]; then
+  mkdir /web${FRONTEND_BASE_URL}
+  mv /web/* /web${FRONTEND_BASE_URL} || :
+fi
+
 # Generate web config, if not supplied.
 if [ ! -f "${ALERTA_WEB_CONF_FILE}" ]; then
   if [ $INIT_LOG = true ]; then echo "# Create web configuration file."; fi