Tinyproxy + faaso-daemon docker image using multirun

Dockerfile

@@ -0,0 +1,21 @@
+FROM --platform=${TARGETPLATFORM:-linux/amd64} alpine as build
+RUN apk add crystal shards yaml-dev openssl-dev zlib-dev
+RUN addgroup -S app && adduser app -S -G app
+WORKDIR /home/app
+COPY shard.yml ./
+RUN mkdir src/
+COPY src/* src/
+RUN shards install
+RUN shards build
+
+FROM --platform=${TARGETPLATFORM:-linux/amd64} alpine as ship
+RUN apk add tinyproxy multirun openssl zlib yaml pcre2 gc libevent libgcc
+
+# Unprivileged user
+RUN addgroup -S app && adduser app -S -G app
+WORKDIR /home/app
+
+COPY tinyproxy/tinyproxy.conf ./
+COPY --from=build /home/app/bin/faaso-daemon ./
+
+CMD ["/usr/bin/multirun", "./faaso-daemon", "tinyproxy -d -c tinyproxy.conf"]

shard.lock

@@ -1,5 +1,9 @@
 version: 2.0
 shards:
+  backtracer:
+    git: https://github.com/sija/backtracer.cr.git
+    version: 1.2.2
+
   commander:
     git: https://github.com/mrrooijen/commander.git
     version: 0.4.0
@@ -12,7 +16,19 @@ shards:
     git: https://github.com/ralsina/docr.git
     version: 0.1.1+git.commit.18f15cc7111b1d0c63347c7cca07aee9ec87a7a8
 
+  exception_page:
+    git: https://github.com/crystal-loot/exception_page.git
+    version: 0.4.1
+
+  kemal:
+    git: https://github.com/kemalcr/kemal.git
+    version: 1.5.0
+
   kiwi:
     git: https://github.com/ralsina/kiwi.git
     version: 0.1.0+git.commit.65059b87771238593a28b2b8b9fdf77d8e2b9e89
 
+  radix:
+    git: https://github.com/luislavena/radix.git
+    version: 0.4.1
+

shard.yml

@@ -7,6 +7,8 @@ authors:
 targets:
   faaso:
     main: src/main.cr
+  faaso-daemon:
+    main: src/daemon.cr
 
 crystal: '>= 1.12.2'
 
@@ -21,4 +23,6 @@ dependencies:
     github: mrrooijen/commander
   kiwi:
     github: ralsina/kiwi
-    branch: master
+    branch: master
+  kemal:
+    github: kemalcr/kemal    

tinyproxy/tinyproxy.conf

@@ -3,5 +3,5 @@ Listen 0.0.0.0
 Timeout 600
 Allow 0.0.0.0/0
 ReverseOnly Yes
-ReversePath "/faaso/hello" "http://localhost:32783"
+ReversePath "/faaso/hello/" "http://hello:3000/"
 ReverseMagic Yes