Replace Heroku with Fly.

Dockerfile

@@ -15,21 +15,12 @@
 # docker buildx create --use --name multiarch --node multiarch0
 # docker buildx build --pull --push --progress plain --platform linux/amd64,linux/arm64,linux/arm/v7 -t stefansundin/rssbox .
 # Push to public ECR:
-# export AWS_PROFILE=stefansundin
 # docker buildx imagetools create -t public.ecr.aws/stefansundin/rssbox stefansundin/rssbox
 
 FROM stefansundin/ruby:3.1
 LABEL org.opencontainers.image.authors="Stefan Sundin"
 LABEL org.opencontainers.image.url="https://github.com/stefansundin/rssbox"
 
-# install gem dependencies
-RUN \
-  apt-get update && \
-  apt-get upgrade -y && \
-  apt-get install -y --no-install-recommends libxml2-dev libxslt1-dev libcurl4 && \
-  apt-get clean && \
-  rm -rf /var/lib/apt/lists/*
-
 WORKDIR /app
 COPY Gemfile Gemfile.lock ./
 RUN bundle config set --local without development:test

README.md

@@ -2,29 +2,19 @@
 
 This app uses the API of other websites and gives you an RSS feed in return. Quick and simple.
 
-To open `vlc://` links, see [vlc-protocol](https://github.com/stefansundin/vlc-protocol).
+List of public RSS Box instances: https://github.com/stefansundin/rssbox/discussions/64
 
-You can use this app freely at [rssbox.herokuapp.com](https://rssbox.herokuapp.com/). An experimental Elastic Beanstalk version [is available](https://rssbox.us-west-2.elasticbeanstalk.com/).
+To open `vlc://` links, see [vlc-protocol](https://github.com/stefansundin/vlc-protocol).
 
 ## Roll your own
 
-[![Deploy](https://www.herokucdn.com/deploy/button.png)](https://heroku.com/deploy?template=https://github.com/stefansundin/rssbox)
-
 To deploy to Elastic Beanstalk, see [.ebextensions/README.md](.ebextensions/README.md).
 
 To deploy to Kubernetes, see [kubernetes/README.md](kubernetes/README.md).
 
 A Docker image is available on [Docker Hub](https://hub.docker.com/r/stefansundin/rssbox) and [Amazon ECR](https://gallery.ecr.aws/stefansundin/rssbox).
 
-**Note:** Redis is now an optional dependency! It is only used for the URL resolution feature (turned off on the public Heroku instance).
-
-#### Heroku
-
-If you need to re-provision redis, or you didn't use the deploy button above to provision the app initially, then you need to make sure to set the maxmemory policy:
-
-```
-heroku redis:maxmemory --policy=allkeys-lru
-```
+**Note:** Redis is an optional dependency! It is only used for the URL resolution feature.
 
 ### Configuration
 

app.rb

@@ -55,9 +55,9 @@
 end
 
 # This route is useful together with this bookmarklet:
-# javascript:location='https://rssbox.herokuapp.com/go?q='+encodeURIComponent(location.href);
+# javascript:location='https://rssbox.fly.dev/go?q='+encodeURIComponent(location.href);
 # Or for Firefox:
-# javascript:location='https://rssbox.herokuapp.com/?go='+encodeURIComponent(location.href);
+# javascript:location='https://rssbox.fly.dev/?go='+encodeURIComponent(location.href);
 get "/go" do
   if /^https?:\/\/(?:mobile\.)?twitter\.com\// =~ params[:q]
     redirect Addressable::URI.new(path: "/twitter", query_values: params).normalize.to_s, 301

config/newrelic.yml

@@ -46,7 +46,7 @@ common: &default_settings
   # See https://newrelic.com/docs/site/renaming-applications for more details
   # on renaming your New Relic applications.
   #
-  app_name: <%= ENV["NEW_RELIC_APP_NAME"] || ENV["HEROKU_APP_NAME"] %>
+  app_name: <%= ENV["NEW_RELIC_APP_NAME"] || ENV["FLY_APP_NAME"] || ENV["HEROKU_APP_NAME"] %>
 
   # When "true", the agent collects performance data about your
   # application and reports this data to the New Relic service at

fly.toml

@@ -0,0 +1,47 @@
+# To deploy to your own fly app, change the app name below and run "fly launch".
+# Please do not add sensitive environment variables here, use "fly secrets" instead!
+
+app = "rssbox"
+kill_signal = "SIGINT"
+kill_timeout = 5
+processes = []
+
+[env]
+  MAX_THREADS = "25"
+  MIN_THREADS = "25"
+  URL_MAX_CONCURRENCY = "5"
+  WEB_CONCURRENCY = "2"
+
+[experimental]
+  allowed_public_ports = []
+  auto_rollback = true
+
+[[services]]
+  http_checks = []
+  internal_port = 3000
+  processes = ["app"]
+  protocol = "tcp"
+  script_checks = []
+  [services.concurrency]
+    hard_limit = 50
+    soft_limit = 40
+    type = "connections"
+
+  [[services.ports]]
+    force_https = true
+    handlers = ["http"]
+    port = 80
+
+  [[services.ports]]
+    handlers = ["tls", "http"]
+    port = 443
+
+  [[services.tcp_checks]]
+    grace_period = "1s"
+    interval = "15s"
+    restart_limit = 0
+    timeout = "2s"
+
+[[statics]]
+  guest_path = "/app/public"
+  url_prefix = "/public"

public/js/main.js

@@ -137,7 +137,7 @@ $(document).ready(async function() {
     submit.attr("value", submit_value);
     form.find("input").prop("disabled", false);
     if (response.status == 503) {
-      // This is usually just HTML garbage from Heroku when a 30 second timeout has been reached, so print a better error
+      // This is usually just HTML garbage when the server request timeout is reached, so print a better error
       alert("Something went wrong. Try again later.");
     }
     else if (!response.ok) {