From 3bee4f5cf650353e993fab787ea3fa4b89100c94 Mon Sep 17 00:00:00 2001
From: Roberto Alsina <roberto.alsina@gmail.com>
Date: Sat, 29 Jun 2024 23:30:10 -0300
Subject: [PATCH] Add healthcheck to crystal runtime

---
 runtimes/crystal/Dockerfile | 3 ++-
 runtimes/crystal/main.cr    | 4 ++++
 src/faaso.cr                | 4 ----
 3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/runtimes/crystal/Dockerfile b/runtimes/crystal/Dockerfile
index 366e83d..e7f8fa1 100644
--- a/runtimes/crystal/Dockerfile
+++ b/runtimes/crystal/Dockerfile
@@ -10,7 +10,7 @@ RUN shards build --release
 RUN strip bin/*
 
 FROM --platform=${TARGETPLATFORM:-linux/amd64} alpine as ship
-RUN apk update && apk upgrade && apk add openssl pcre2 libgcc gc libevent && apk cache clean
+RUN apk update && apk upgrade && apk add openssl pcre2 libgcc gc libevent curl && apk cache clean
 RUN addgroup -S app && adduser app -S -G app
 
 WORKDIR /home/app
@@ -19,3 +19,4 @@ USER app
 COPY --from=build /home/app/bin/function  .
 
 CMD ["./function"]
+HEALTHCHECK  CMD curl --fail http://localhost:3000/ping || exit 1
\ No newline at end of file
diff --git a/runtimes/crystal/main.cr b/runtimes/crystal/main.cr
index c8670e8..e719143 100644
--- a/runtimes/crystal/main.cr
+++ b/runtimes/crystal/main.cr
@@ -1,4 +1,8 @@
 require "kemal"
 require "./funko.cr"
 
+get "/ping/" do
+    "OK"
+end
+
 Kemal.run
diff --git a/src/faaso.cr b/src/faaso.cr
index 7dc2032..79bb84e 100644
--- a/src/faaso.cr
+++ b/src/faaso.cr
@@ -84,8 +84,6 @@ module Faaso
         funkos.each do |funko|
           container_name = "faaso-#{funko.name}"
           docker_api = Docr::API.new(Docr::Client.new)
-          # Pull image from registry
-          # docker_api.images.create(image: tag)
 
           # Get image history, sorted newer image first
           begin
@@ -176,8 +174,6 @@ module Faaso
           end
           puts "Container for #{funko.name} is running"
         end
-        # TODO: Run test for healthcheck
-        # TODO: Return function URL for testing
       end
     end