Do not require setting CANTALOUPE_ENDPOINT_API_SECRET

cantaloupe/Dockerfile

@@ -1,5 +1,8 @@
 FROM islandora/cantaloupe:3.4
 
+ENV CANTALOUPE_ENDPOINT_API_ENABLED="true" \
+    CANTALOUPE_ENDPOINT_API_USERNAME=islandora
+
 RUN apk add --no-cache \
     gcc \
     g++ \
@@ -14,11 +17,20 @@ RUN apk add --no-cache \
     jpeg-dev \
     zlib-dev \
     libwebp-dev \
+  && git clone https://github.com/CLIUtils/CLI11.git \
+  && cd CLI11 \
+  && mkdir build \
+  && cd build \
+  && cmake .. \
+  && make \
+  && make install \
+  && cd ../.. && rm -rf grok \
   && git clone https://github.com/GrokImageCompression/grok \
   && cd grok \
   && git checkout v14.2.0 \
   && cmake . \
   && make install \
+  && cd ../ && rm -rf grok \
   && apk del \
     gcc \
     g++ \
@@ -33,4 +45,8 @@ RUN apk add --no-cache \
     zlib-dev \
     libwebp-dev
 
-HEALTHCHECK CMD curl -s http://localhost:8182/health | jq .color | grep -q GREEN
+COPY --link rootfs /
+
+HEALTHCHECK CMD curl -s \
+  -u "${CANTALOUPE_ENDPOINT_API_USERNAME}:$(cat /var/run/s6/container_environment/CANTALOUPE_ENDPOINT_API_SECRET)" \
+  http://localhost:8182/health | jq .color | grep -q GREEN

cantaloupe/rootfs/etc/cont-init.d/01-set-api-secret.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/with-contenv bash
+set -e
+
+ENV_FILE="/var/run/s6/container_environment/CANTALOUPE_ENDPOINT_API_SECRET"
+if [ ! -s "$ENV_FILE" ]; then
+    openssl rand -hex 16 > "$ENV_FILE"
+    echo "CANTALOUPE_ENDPOINT_API_SECRET was empty. Set to a new random value."
+fi