126 lines
4.1 KiB
Bash
Executable File
126 lines
4.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -xeuo pipefail
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# Inputs expected from the workflow:
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# GITHUB_REPOSITORY - owner/repo of the current action repo (provided by Actions)
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# GITHUB_SHA - commit to clone/check out (provided by Actions, optional)
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# GO_VERSION - optional, e.g. "1.23.3"; if unset, script will query latest.
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main() {
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# 1. Create temp directory
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TMPDIR="$(mktemp -d)"
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echo "Using temp dir: ${TMPDIR}"
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cd "${TMPDIR}"
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mkdir golang
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cd golang
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GO_VERSION=$(curl -s 'https://go.dev/VERSION?m=text' | head -n1)
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GOLANG_URL="https://go.dev/dl/${GO_VERSION}.linux-amd64.tar.gz"
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wget "${GOLANG_URL}"
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tar xzf "${GO_VERSION}.linux-amd64.tar.gz"
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PATH="${PATH}:$PWD/go/bin"
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# 2. Clone latest CoreDNS release
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cd "${TMPDIR}"
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COREDNS_REPO_URL="https://github.com/coredns/coredns.git"
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COREDNS_DIR="${TMPDIR}/coredns"
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# get latest tag (annotated or lightweight)
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git clone --depth=1 --filter=blob:none --tags "${COREDNS_REPO_URL}" "${COREDNS_DIR}"
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cd "${COREDNS_DIR}"
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git fetch --tags
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LATEST_TAG="$(git tag --list --sort=-version:refname | head -n 1)"
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git fetch --tags --depth=1 origin "${LATEST_TAG}"
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git checkout "${LATEST_TAG}"
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# 3. Clone the GitHub Action's repo (this repo)
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ACTION_REPO_DIR="${TMPDIR}/action-repo"
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mkdir "${ACTION_REPO_DIR}"
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cp -a . "${ACTION_REPO_DIR}/"
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# 4. cd into the CoreDNS repo
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cd "${COREDNS_DIR}"
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# 5. Update plugin.cfg to include netboxdns plugin
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# Insert netboxdns after the 'cache' plugin entry as recommended. [web:16][web:29]
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if ! grep -q '^netboxdns:' plugin.cfg; then
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awk '
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/^cache:/ {
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print
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print "netboxdns:github.com/doubleu-labs/coredns-netbox-plugin-dns"
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next
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}
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{ print }
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' plugin.cfg >plugin.cfg.new
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mv plugin.cfg.new plugin.cfg
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fi
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# 6. Regenerate plugin source files
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# CoreDNS uses go generate (via Makefile) to rebuild plugin glue code. [web:20][web:26]
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make core/plugin/zplugin.go core/dnsserver/zdirectives.go
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# 7. go mod replace plugin path to the cloned action repo
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# This assumes the plugin lives at github.com/doubleu-labs/coredns-netbox-plugin-dns in your repo. [web:16][web:23]
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# Adjust relative path if your repo layout differs.
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docker run --rm -it \
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--user "$(id -u):$(id -g)" \
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-v "$PWD":"/work" \
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-w "/work" \
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golang:latest go mod edit -replace=github.com/doubleu-labs/coredns-netbox-plugin-dns="${ACTION_REPO_DIR}"
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# 8. Update Go version to the latest
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# Install or pick latest Go and set GOTOOLCHAIN, or rely on pre-installed toolchain in the runner. [web:17]
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# Here we query the latest stable from golang.org and export it for this build.
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if [ -z "${GO_VERSION:-}" ]; then
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GO_VERSION="$(curl -s https://go.dev/VERSION?m=text | head -n1 | sed 's/^go//')" # e.g. "1.23.3"
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fi
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echo "Using Go version: ${GO_VERSION}"
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# If you use setup-go in the workflow, this is optional; otherwise install here.
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# Example (Debian-based runner):
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# sudo rm -rf /usr/local/go
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# curl -sL "https://go.dev/dl/go${GO_VERSION}.linux-amd64.tar.gz" | sudo tar -C /usr/local -xz
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# export PATH="/usr/local/go/bin:${PATH}"
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export GOTOOLCHAIN="go${GO_VERSION}"
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# 9. Compile CoreDNS
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make coredns || make
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# 10. Strip the binary
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STRIP_BIN="${STRIP_BIN:-strip}"
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"${STRIP_BIN}" ./coredns
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# 11. Create a .deb installing /usr/local/bin/coredns
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# Minimal Debian package using dpkg-deb. [web:17]
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PKG_ROOT="${TMPDIR}/pkg-root"
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mkdir -p "${PKG_ROOT}/DEBIAN" "${PKG_ROOT}/usr/local/bin"
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# Basic metadata; tweak as needed
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PKG_NAME="coredns-netboxdns"
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PKG_VERSION="$(echo "${LATEST_TAG}" | sed 's/^v//')"
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PKG_ARCH="$(dpkg --print-architecture 2>/dev/null || echo amd64)"
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cat >"${PKG_ROOT}/DEBIAN/control" <<EOF
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Package: ${PKG_NAME}
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Version: ${PKG_VERSION}
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Section: net
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Priority: optional
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Architecture: ${PKG_ARCH}
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Maintainer: CI <ci@example.invalid>
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Description: CoreDNS with netboxdns plugin
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Custom CoreDNS build with netboxdns plugin compiled in.
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EOF
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install -m 0755 ./coredns "${PKG_ROOT}/usr/local/bin/coredns"
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DEB_OUT="${TMPDIR}/${PKG_NAME}_${PKG_VERSION}_${PKG_ARCH}.deb"
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dpkg-deb --build "${PKG_ROOT}" "${DEB_OUT}"
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echo "Built Debian package at: ${DEB_OUT}"
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}
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main "$@"
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