feat: 本仓库自己发布二进制
发布逻辑搬到这里，因为二进制从这里构建、这里拥有契约。simadmin-relay 的那个脚本改成 转发（一条命令，不是两份实现——两处知道怎么发同一批产物，就是两处要在注册表 API 变化时 一起改，这个仓库已经犯过一次）。 与本仓库的一条硬约束绑定：**必须公开可读**。安装命令由节点执行、节点没有凭据，而 Gitea 对私有仓库返回 404，所以节点上看到的失败长得像 URL 写错。脚本现在会检查并**拒绝发布**， 而不是发出一批拿不到的东西。 VERSION 提到 1.0.0，release body 里的安装片段更新为 enroll + install 两步。
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#!/usr/bin/env bash
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# Publishes this agent's cross-compiled binaries as a Gitea release.
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#
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# The release is what makes the install command real: `msa-agent enroll` runs on the node, and the node
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# has no Go toolchain, so the binary has to come from somewhere. Before this the only way to get one was
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# to build it on another machine and scp it, which is a step the install command cannot express.
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#
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# The token is read from the git credential helper rather than an environment variable, so it is not in
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# the process table and not in a shell history. Override with MSA_GITEA_TOKEN when running somewhere
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# that has no helper.
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#
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# Usage:
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# ./scripts/release.sh # publish the version in the Makefile
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# ./scripts/release.sh --tag v1.0.0 # publish an explicit tag
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# ./scripts/release.sh --dry-run # build, checksum, print, upload nothing
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#
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# This repository must stay publicly readable: the install command fetches the binary from a node that
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# has no credentials, and Gitea answers 404 for a private repository, so the failure on the node looks
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# like a wrong URL. The script checks that and refuses rather than publishing something unreachable.
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set -euo pipefail
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ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
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cd "$ROOT"
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REMOTE="$(git config --get remote.origin.url)"
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HOST="$(printf '%s' "$REMOTE" | sed -E 's#^https?://([^/]+)/.*#\1#')"
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SLUG="$(printf '%s' "$REMOTE" | sed -E 's#^https?://[^/]+/##; s#\.git$##')"
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if [[ -z "$HOST" || -z "$SLUG" ]]; then
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echo "release: cannot parse the origin remote ($REMOTE)" >&2
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exit 1
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fi
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VERSION="$(sed -n 's/^VERSION[[:space:]]*?*=[[:space:]]*//p' Makefile | head -1)"
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TAG="v${VERSION}"
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DRY_RUN=0
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while [[ $# -gt 0 ]]; do
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case "$1" in
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--tag) TAG="$2"; shift 2 ;;
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--dry-run) DRY_RUN=1; shift ;;
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*) echo "release: unknown argument $1" >&2; exit 2 ;;
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esac
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done
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step() { printf '\n\033[1m== %s\033[0m\n' "$1"; }
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step "building ${TAG}"
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# VERSION is passed through so the binary reports the tag it was published under, which is what an
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# operator sees in `msa-agent version` and in the agent's startup log line.
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make build-arm64 build-armv7 VERSION="${VERSION}"
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step "checksums"
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(
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cd dist
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shasum -a 256 msa-agent-linux-arm64 msa-agent-linux-armv7 > SHA256SUMS
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cat SHA256SUMS
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)
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if [[ "$DRY_RUN" -eq 1 ]]; then
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step "dry run: nothing was uploaded"
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exit 0
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fi
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TOKEN="${MSA_GITEA_TOKEN:-}"
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if [[ -z "$TOKEN" ]]; then
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# The credential helper is what `git push` already uses, so there is no second secret to keep.
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TOKEN="$(printf 'protocol=https\nhost=%s\n\n' "$HOST" | git credential fill 2>/dev/null | sed -n 's/^password=//p')"
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fi
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if [[ -z "$TOKEN" ]]; then
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echo "release: no API token. Set MSA_GITEA_TOKEN, or make sure git can authenticate to $HOST." >&2
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exit 1
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fi
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API="https://${HOST}/api/v1/repos/${SLUG}"
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AUTH=(-H "Authorization: token ${TOKEN}")
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step "target repository"
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PRIVATE="$(curl -sf "${AUTH[@]}" "${API}" | python3 -c 'import json,sys; print(json.load(sys.stdin).get("private"))' 2>/dev/null || echo unknown)"
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echo "${SLUG} (private: ${PRIVATE})"
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if [[ "$PRIVATE" != "False" ]]; then
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echo "release: ${SLUG} is not publicly readable. A node fetching the binary has no credentials and" >&2
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echo " would get 404, which looks like a wrong URL. Make it public before publishing." >&2
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exit 1
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fi
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step "creating the release ${TAG}"
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# A release that already exists is reused rather than refused: re-running this after a fix should
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# replace the binaries, and failing here would mean the operator has to delete the release by hand.
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EXISTING="$(curl -sf "${AUTH[@]}" "${API}/releases/tags/${TAG}" 2>/dev/null || true)"
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if [[ -n "$EXISTING" ]]; then
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RELEASE_ID="$(printf '%s' "$EXISTING" | python3 -c 'import json,sys; print(json.load(sys.stdin)["id"])')"
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echo "reusing release ${TAG} (id ${RELEASE_ID})"
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else
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BODY="$(python3 - "$TAG" "$VERSION" <<'PY'
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import json, sys
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tag, version = sys.argv[1], sys.argv[2]
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print(json.dumps({
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"tag_name": tag,
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"name": f"simadmin-relay agent {version}",
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"body": (
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"Outbound-only node agent for SimAdmin nodes, cross-compiled for the ARM Debian boxes SimAdmin "
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"runs on. Static, no runtime dependencies, no third-party modules.\n\n"
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"Install on a node:\n\n"
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"```sh\n"
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f"curl -fsSL https://HOST/SLUG/releases/download/{tag}/msa-agent-linux-arm64 \\\n"
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" -o /opt/msa-agent/msa-agent && chmod 755 /opt/msa-agent/msa-agent\n"
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"/opt/msa-agent/msa-agent enroll --relay https://your-relay --code <code> \\\n"
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" --write /etc/msa-agent/config.json\n"
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"/opt/msa-agent/msa-agent install\n"
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"```\n\n"
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"`armv7` is the same build for 32-bit ARM. `SHA256SUMS` covers both.\n\n"
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"Removing it again is `msa-agent uninstall` on the node; `--dry-run` shows the plan first.\n"
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),
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"draft": False,
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"prerelease": False,
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}, ensure_ascii=False))
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PY
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)"
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BODY="${BODY//HOST/$HOST}"
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BODY="${BODY//SLUG/$SLUG}"
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RELEASE_ID="$(curl -sf -X POST "${AUTH[@]}" -H 'Content-Type: application/json' \
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"${API}/releases" -d "$BODY" | python3 -c 'import json,sys; print(json.load(sys.stdin)["id"])')"
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echo "created release ${TAG} (id ${RELEASE_ID})"
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fi
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step "uploading binaries"
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for asset in msa-agent-linux-arm64 msa-agent-linux-armv7 SHA256SUMS; do
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# An asset with the same name cannot be replaced, so an existing one is deleted first: otherwise a
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# re-run after a rebuild would silently leave the previous binary in place.
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EXISTING_ASSET="$(curl -sf "${AUTH[@]}" "${API}/releases/${RELEASE_ID}/assets" \
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| python3 -c "
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import json, sys
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name = sys.argv[1]
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for asset in json.load(sys.stdin):
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if asset['name'] == name:
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print(asset['id'])
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break
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" "$asset" || true)"
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if [[ -n "$EXISTING_ASSET" ]]; then
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# Gitea's delete path carries the release id; GitHub's does not. Using GitHub's shape here returns
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# 404 and, under `set -e`, killed the script silently after the first asset — which is how a
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# re-publish left the old binary in place while looking like it had replaced it.
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curl -sf -X DELETE "${AUTH[@]}" "${API}/releases/${RELEASE_ID}/assets/${EXISTING_ASSET}" >/dev/null
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echo " replaced ${asset}"
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fi
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curl -sf -X POST "${AUTH[@]}" \
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-F "attachment=@dist/${asset}" \
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"${API}/releases/${RELEASE_ID}/assets?name=${asset}" >/dev/null
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echo " uploaded ${asset}"
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done
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step "published"
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printf 'release: https://%s/%s/releases/tag/%s\n' "$HOST" "$SLUG" "$TAG"
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printf 'download: https://%s/%s/releases/download/%s/msa-agent-linux-arm64\n' "$HOST" "$SLUG" "$TAG"
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printf '\n'
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# The app renders the install command, so the URL it carries has to be this one. Printing it in the
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# exact form DefaultContainer holds is what makes the two comparable by eye.
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printf 'DefaultContainer.agentDownload must be:\n'
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printf ' https://%s/%s/releases/download/%s/msa-agent-linux-arm64\n' "$HOST" "$SLUG" "$TAG"
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printf '\nVerify it is fetchable with no credentials:\n'
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printf ' curl -fsSL -o /dev/null -w "%%{http_code}\\n" %s\n' \
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"https://${HOST}/${SLUG}/releases/download/${TAG}/msa-agent-linux-arm64"
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