Added: Prerender (#631)

Signed-off-by: Martin <martin@hotmail.com.br>

public/v4/apps/prerender.yml

@@ -0,0 +1,56 @@
+captainVersion: 4
+services:
+    $$cap_appname:
+        image: tvanro/prerender-alpine:6.4.0
+        restart: always
+        environment:
+            MEMORY_CACHE: $$cap_memory_cache
+            CACHE_MAXSIZE: $$cap_cache_max_size
+            CACHE_TTL: $$cap_cache_ttl
+            BLACKLISTED_DOMAINS: $$cap_blacklisted_domains
+        caproverExtra:
+            containerHttpPort: '3000'
+caproverOneClickApp:
+    variables:
+        - id: $$cap_memory_cache
+          label: Enable memory cache?
+          defaultValue: 1
+          validRegex: /^[01]$/
+          description: Serve cache responses in memory.
+
+        - id: $$cap_cache_max_size
+          label: Cache Max Size
+          defaultValue: 10000
+          validRegex: /^[0-9]*$/
+          description: Max number of objects(pages) in cache.
+
+        - id: $$cap_cache_ttl
+          label: Cache time to live in (seconds)
+          defaultValue: 7200
+          validRegex: /^[0-9]*$/
+          description: Maximum time to live in seconds of objects(pages).
+
+        - id: $$cap_blacklisted_domains
+          label: 'Optional: Blacklisted domains, separated by ",". Leave empty if none.'
+          description: 'Blacklisted domains which will not be pre rendered. E.g: yahoo.com,www.google.com'
+
+    instructions:
+        start: >-
+            Prerender is a node server that uses Headless Chrome to render HTML,
+            screenshots, PDFs, and HAR files out of any web page. The Prerender
+            server listens for an http request, takes the URL and loads it in
+            Headless Chrome, waits for the page to finish loading by waiting for
+            the network to be idle, and then returns your content.
+
+            You can choose wheter to expose it as a web app, or not.
+
+        end: >-
+            Your service is available at http://$$cap_appname.$$cap_root_domain
+
+            Check its health with:
+
+            curl -X GET 'http://$$cap_appname.$$cap_root_domain/render?url=https://www.example.com
+    displayName: 'Prerender'
+    isOfficial: true
+    description: Prerender uses Headless Chrome to render HTML, screenshots, PDFs, and HAR files out of any web page, in order to serve them to crawlers.
+    documentation: https://hub.docker.com/r/tvanro/prerender-alpine