docker-compose: use image tag from environment variable

.env

@@ -0,0 +1 @@
+SHELLHUB_VERSION=latest

docker-compose.dev.yml

@@ -28,6 +28,8 @@ services:
   gateway:
     build:
       context: gateway
+    environment:
+      - SHELLHUB_VERSION=latest
   agent:
     build:
       context: agent

docker-compose.yml

@@ -2,7 +2,7 @@ version: '3.7'
 
 services:
   ssh:
-    image: shellhubio/shellhub-ssh
+    image: shellhubio/shellhub-ssh:${SHELLHUB_VERSION}
     environment:
       - PRIVATE_KEY=/run/secrets/ssh_private_key
     depends_on:
@@ -41,7 +41,7 @@ services:
       protocol: tcp
       mode: host
   api:
-    image: shellhubio/shellhub-api
+    image: shellhubio/shellhub-api:${SHELLHUB_VERSION}
     environment:
       - PRIVATE_KEY=/run/secrets/api_private_key
       - PUBLIC_KEY=/run/secrets/api_public_key
@@ -53,17 +53,19 @@ services:
       - api_private_key
       - api_public_key
   ws:
-    image: shellhubio/shellhub-ws
+    image: shellhubio/shellhub-ws:${SHELLHUB_VERSION}
     depends_on:
       - ssh
     links:
       - ssh
   ui:
-    image: shellhubio/shellhub-ui
+    image: shellhubio/shellhub-ui:${SHELLHUB_VERSION}
     depends_on:
       - api
   gateway:
-    image: shellhubio/shellhub-gateway
+    image: shellhubio/shellhub-gateway:${SHELLHUB_VERSION}
+    environment:
+      - SHELLHUB_VERSION=${SHELLHUB_VERSION}
     depends_on:
       - api
       - ws

gateway/Dockerfile

@@ -2,4 +2,5 @@ FROM openresty/openresty:1.15.8.2-6-alpine
 
 RUN ["rm", "/etc/nginx/conf.d/default.conf"]
 
+COPY nginx.conf /usr/local/openresty/nginx/conf/nginx.conf
 COPY shellhub.conf /etc/nginx/conf.d/

gateway/nginx.conf

@@ -0,0 +1,24 @@
+worker_processes 1;
+
+events {
+    worker_connections 1024;
+}
+
+env SHELLHUB_VERSION;
+
+http {
+    include       mime.types;
+    default_type  application/octet-stream;
+
+    client_body_temp_path /var/run/openresty/nginx-client-body;
+    proxy_temp_path       /var/run/openresty/nginx-proxy;
+    fastcgi_temp_path     /var/run/openresty/nginx-fastcgi;
+    uwsgi_temp_path       /var/run/openresty/nginx-uwsgi;
+    scgi_temp_path        /var/run/openresty/nginx-scgi;
+
+    sendfile        on;
+
+    keepalive_timeout  65;
+
+    include /etc/nginx/conf.d/*.conf;
+}

gateway/shellhub.conf

@@ -68,7 +68,8 @@ server {
         content_by_lua_block {
             local host=ngx.var.http_host
             local tenant_id=ngx.var.arg_tenant_id
-            ngx.say("docker run -d --restart=unless-stopped --privileged --net=host --pid=host -v /:/host -e SERVER_ADDRESS=http://",host," -e PRIVATE_KEY=/host/etc/shellhub.key -e TENANT_ID=",tenant_id," shellhubio/agent:latest")
+            local version=os.getenv("SHELLHUB_VERSION")
+            ngx.say("docker run -d --restart=unless-stopped --privileged --net=host --pid=host -v /:/host -e SERVER_ADDRESS=http://",host," -e PRIVATE_KEY=/host/etc/shellhub.key -e TENANT_ID=",tenant_id," shellhubio/agent:",version)
         }
     }
 }