feat: add coredns

coredns/Dockerfile

@@ -0,0 +1,26 @@
+ARG BUILD_FROM=ghcr.io/hassio-addons/debian-base:7.8.2
+# hadolint ignore=DL3006
+FROM ${BUILD_FROM}
+
+SHELL ["/bin/bash", "-o", "pipefail", "-c"]
+
+ARG COREDNS_VERSION=1.12.1
+
+WORKDIR /coredns
+
+RUN apt-get update \
+    && apt-get install -y ca-certificates libcap2-bin \
+    && apt-get clean \
+    && curl -sSL -o coredns.tgz \
+      https://github.com/coredns/coredns/releases/download/v${COREDNS_VERSION}/coredns_${COREDNS_VERSION}_linux_arm64.tgz  \
+    && tar -xvf coredns.tgz \
+    && chmod +x coredns
+
+LABEL \
+    org.opencontainers.image.title="CoreDNS Add-on" \
+    org.opencontainers.image.description="CoreDNS server for Home Assistant" \
+    org.opencontainers.image.url="https://coredns.io" \
+    org.opencontainers.image.source="https://github.com/coredns/coredns" \
+    org.opencontainers.image.documentation="https://coredns.io/manual"
+
+COPY rootfs /

coredns/build.yaml

@@ -0,0 +1,5 @@
+---
+build_from:
+  amd64: ghcr.io/hassio-addons/debian-base/amd64:7.8.2
+codenotary:
+  base_image: codenotary@frenck.dev

coredns/config.yaml

@@ -0,0 +1,17 @@
+name: "Coredns"
+version: "1.12.1"
+slug: "coredns"
+description: "CoreDNS is a DNS server that chains plugins "
+url: "https://coredns.io/"
+arch:
+  - amd64
+boot: auto
+init: false
+startup: services
+map:
+  - addon_config:rw
+options: {}
+schema: {}
+ports:
+  53/tcp: 53
+  53/udp: 53

coredns/rootfs/etc/s6-overlay/s6-rc.d/coredns/finish

@@ -0,0 +1,45 @@
+#!/command/with-contenv bashio
+# shellcheck shell=bash
+# ==============================================================================
+# Home Assistant Add-on: CoreDNS
+# ==============================================================================
+declare exit_code
+readonly exit_code_container=$(</run/s6-linux-init-container-results/exitcode)
+readonly exit_code_service="${1}"
+readonly exit_code_signal="${2}"
+readonly service="coredns"
+
+bashio::log.info \
+  "Service ${service} exited with code ${exit_code_service}" \
+  "(by signal ${exit_code_signal})"
+
+# Received a signal
+if [[ "${exit_code_service}" -eq 256 ]]; then
+
+  # The signal might be a result of another service crashing. Only
+  # overwrite the container exit code if it is not already set.
+  if [[ "${exit_code_container}" -eq 0 ]]; then
+    echo $((128 + $exit_code_signal)) > /run/s6-linux-init-container-results/exitcode
+  fi
+
+  # If the signal is SIGTERM, we should halt the container and take down
+  # the whole  process tree.
+  [[ "${exit_code_signal}" -eq 15 ]] && exec /run/s6/basedir/bin/halt
+
+# The service exited with a non-zero exit code, which means it crashed.
+elif [[ "${exit_code_service}" -ne 0 ]]; then
+
+  # The service might be a result of another service crashing. Only
+  # overwrite the container exit code if it is not already set.
+  if [[ "${exit_code_container}" -eq 0 ]]; then
+    echo "${exit_code_service}" > /run/s6-linux-init-container-results/exitcode
+  fi
+
+  # We should halt the container and take down the whole process tree.
+  exec /run/s6/basedir/bin/halt
+
+# The service exited with a zero exit code, which means it exited, let
+# S6 supervision restart it.
+else
+  bashio::log.info "Service ${service} restarting..."
+fi

coredns/rootfs/etc/s6-overlay/s6-rc.d/coredns/run

@@ -0,0 +1,9 @@
+#!/command/with-contenv bashio
+# shellcheck shell=bash
+# ==============================================================================
+# Home Assistant Add-on: CoreDNS
+# ==============================================================================
+
+bashio::log.info "Starting CoreDNS..."
+
+exec /coredns --conf /config/Corefile

coredns/rootfs/etc/s6-overlay/s6-rc.d/coredns/type

@@ -0,0 +1 @@
+longrun