adding icecast

icecast/Dockerfile

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+FROM pltnk/icecast2
+
+# Copy template + entrypoint into image
+COPY icecast.xml.template /etc/icecast2/icecast.xml.template
+COPY entrypoint.sh /entrypoint.sh
+
+# Ensure script is executable
+RUN chmod +x /entrypoint.sh
+
+ENTRYPOINT [ "entrypoint.sh" ]

icecast/entrypoint.sh

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+#!/bin/sh
+set -e
+
+# Substitute environment variables into template
+envsubst < /etc/icecast2/icecast.xml.template > /etc/icecast2/icecast.xml
+
+# Run icecast with the generated config
+exec icecast -c /etc/icecast2/icecast.xml

icecast/icecast.xml.template

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+<icecast>
+  <authentication>
+    <source-password>${ICECAST_SOURCE_PASSWORD}</source-password>
+    <relay-password>${ICECAST_RELAY_PASSWORD}</relay-password>
+    <admin-user>${ICECAST_ADMIN_USER}</admin-user>
+    <admin-password>${ICECAST_ADMIN_PASSWORD}</admin-password>
+  </authentication>
+
+  <hostname>${ICECAST_HOST}</hostname>
+
+  <listen-socket>
+    <port>${ICECAST_PORT}</port>
+  </listen-socket>
+
+  <mount>
+    <mount-name>${ICECAST_MOUNT}</mount-name>
+  </mount>
+
+  <limits>
+    <clients>100</clients>
+    <sources>2</sources>
+  </limits>
+
+  <security>
+    <chroot>0</chroot>
+  </security>
+</icecast>