Make who-are-you & cl-camp4 exercises work offline

sh/tests/Caddyfile

@@ -0,0 +1,4 @@
+{$DOMAIN}
+tls internal
+encode zstd gzip
+file_server

sh/tests/Dockerfile

@@ -1,6 +1,22 @@
 FROM debian:10.5-slim
 
 RUN apt-get update
-RUN apt-get -y install jq curl git
+RUN apt-get -y install jq curl
+
+WORKDIR /app/assets/superhero
+RUN curl --remote-name --location https://demo.01-edu.org/assets/superhero/all.json
+
+WORKDIR /tmp/installation
+
+RUN curl --remote-name --location https://github.com/caddyserver/caddy/releases/download/v2.2.1/caddy_2.2.1_linux_amd64.tar.gz
+RUN tar xf caddy_2.2.1_linux_amd64.tar.gz
+RUN mv caddy /usr/local/bin
+RUN apt-get -y install libcap2-bin
+RUN setcap 'cap_net_bind_service=+ep' /usr/local/bin/caddy
+
+WORKDIR /app
+
+RUN rm -rf /tmp/installation
+
 COPY . /app
 ENTRYPOINT ["/app/entrypoint.sh"]

sh/tests/cl-camp4_test.sh

@@ -5,6 +5,9 @@ set -euo pipefail
 IFS='
 '
 
+echo insecure >> ~/.curlrc
+caddy start &>/dev/null
+
 challenge() {
 	submitted=$(./student/myfamily.sh)
 	expected=$(./solutions/myfamily.sh)
@@ -14,3 +17,5 @@ challenge() {
 
 HERO_ID=1 challenge
 HERO_ID=70 challenge
+
+caddy stop &>/dev/null

sh/tests/who-are-you_test.sh

@@ -5,7 +5,12 @@ set -euo pipefail
 IFS='
 '
 
+echo insecure >> ~/.curlrc
+caddy start &>/dev/null
+
 submitted=$(./student/who-are-you.sh)
 expected=$(./solutions/who-are-you.sh)
 
+caddy stop &>/dev/null
+
 diff <(echo "$submitted") <(echo "$expected")