added proxy pool (#432)

public/v4/apps/proxypool.yml

@@ -0,0 +1,36 @@
+captainVersion: 4
+services:
+    $$cap_appname-redis:
+        image: redis:$$cap_redis_version
+        volumes:
+            - $$cap_appname-cache-data:/app/data
+        caproverExtra:
+            notExposeAsWebApp: 'true'
+    $$cap_appname:
+        image: jhao104/proxy_pool:$$cap_app_version
+        depends_on:
+            - $$cap_appname-redis
+        restart: always
+        environment:
+            DB_CONN: redis://srv-captain--$$cap_appname-redis:6379/0
+        caproverExtra:
+            containerHttpPort: '5010'
+caproverOneClickApp:
+    variables:
+        - id: $$cap_redis_version
+          label: Redis Docker version
+          defaultValue: 6-alpine
+          description: Check out their Docker page for the valid versions https://hub.docker.com/r/library/redis/tags
+        - id: $$cap_app_version
+          label: Proxy Pool version
+          defaultValue: '2.2.0'
+          description: https://hub.docker.com/r/jhao104/proxy_pool/tags
+    instructions:
+        start: Python crawler proxy IP pool (proxy pool)
+
+        end: Done! 😄 Your service is available at http://$$cap_appname.$$cap_root_domain
+
+    displayName: Proxy Pool
+    isOfficial: true
+    description: Python crawler proxy IP pool (proxy pool)
+    documentation: https://hub.docker.com/r/jhao104/proxy_pool