add imgproxy (#673)

* add imgproxy

* add missing newline to imgproxy config

public/v4/apps/imgproxy.yml

@@ -0,0 +1,36 @@
+captainVersion: 4
+caproverOneClickApp:
+    displayName: 'imgproxy'
+    description: 'Fast and secure standalone server for resizing and converting remote images'
+    documentation: 'https://docs.imgproxy.net/'
+    isOfficial: true
+    instructions:
+        start: |-
+            imgproxy - Fast and secure standalone server for resizing and converting remote images.
+            For more info visit https://imgproxy.net/.
+        end: |-
+            imgproxy has been successfully deployed as $$cap_appname.
+            You can your configuration if necessary. For more info visit https://docs.imgproxy.net/.
+    variables:
+        - defaultValue: 3.6.0
+          id: $$cap_imgproxy_version
+          label: imgproxy Version
+          validRegex: /^(?:2|3)(?:\.[0-9]+){0,2}$/
+        - defaultValue: $$cap_gen_random_hex(128)
+          id: $$cap_imgproxy_key
+          label: Signature Key
+          validRegex: /^[a-fA-F0-9]+$/
+        - defaultValue: $$cap_gen_random_hex(128)
+          id: $$cap_imgproxy_salt
+          label: Signature Salt
+          validRegex: /^[a-fA-F0-9]+$/
+services:
+    $$cap_appname:
+        caproverExtra:
+            containerHttpPort: 5000
+        environment:
+            IMGPROXY_BIND: 0.0.0.0:5000
+            IMGPROXY_KEY: $$cap_imgproxy_key
+            IMGPROXY_SALT: $$cap_imgproxy_salt
+        image: darthsim/imgproxy:v$$cap_imgproxy_version
+        restart: unless-stopped