Add Miniflux feed reader (#238)

public/v2/apps/miniflux.json

@@ -0,0 +1,73 @@
+{
+    "captainVersion": "2",
+    "displayName": "Miniflux",
+    "documentation": "https://miniflux.app/docs/index.html",
+    "description": "Self hosted RSS server",
+    "dockerCompose": {
+        "version": "3.8",
+        "services": {
+            "$$cap_appname-db": {
+                "image": "postgres:$$cap_postgres_version",
+                "notExposeAsWebApp": "true",
+                "volumes": ["$$cap_appname-db-data:/var/lib/postgresql/data"],
+                "restart": "always",
+                "environment": {
+                    "POSTGRES_USER": "miniflux",
+                    "POSTGRES_PASSWORD": "$$cap_postgres_password",
+                    "POSTGRES_DB": "miniflux"
+                }
+            },
+            "$$cap_appname": {
+                "image": "miniflux/miniflux:$$cap_miniflux_version",
+                "containerHttpPort": "8080",
+                "depends_on": ["$$cap_appname-db"],
+                "restart": "always",
+                "environment": {
+                    "DATABASE_URL": "postgres://miniflux:$$cap_postgres_password@srv-captain--$$cap_appname-db/miniflux?sslmode=disable",
+                    "RUN_MIGRATIONS": "1",
+                    "CREATE_ADMIN": "1",
+                    "ADMIN_USERNAME": "$$cap_admin_user",
+                    "ADMIN_PASSWORD": "$$cap_admin_password"
+                }
+            }
+        },
+        "volumes": {
+            "$$cap_appname-db-data": {}
+        }
+    },
+    "instructions": {
+        "start": "Miniflux is a minimalist and opinionated feed reader.",
+        "end": "Miniflux is deployed and the dashboard is available from http://$$cap_appname.$$cap_root_domain."
+    },
+    "variables": [
+        {
+            "id": "$$cap_miniflux_version",
+            "label": "Miniflux version",
+            "defaultValue": "2.0.22",
+            "description": "Checkout valid tags at https://hub.docker.com/r/miniflux/miniflux/tags"
+        },
+        {
+            "id": "$$cap_admin_user",
+            "label": "Admin user"
+        },
+        {
+            "id": "$$cap_admin_password",
+            "label": "Admin Password",
+            "defaultValue": "$$cap_gen_random_hex(10)"
+        },
+        {
+            "id": "$$cap_postgres_version",
+            "label": "Postgres Version",
+            "defaultValue": "9.6.18-alpine",
+            "description": "Checkout their docker page for the valid tags https://hub.docker.com/r/library/postgres/tags/",
+            "validRegex": "/^([^\\s^\\/])+$/"
+        },
+        {
+            "id": "$$cap_postgres_password",
+            "label": "Postgres Password",
+            "defaultValue": "$$cap_gen_random_hex(10)",
+            "description": "",
+            "validRegex": "/.{1,}/"
+        }
+    ]
+}