headscale/Dockerfile.wasmclient
Kristoffer Dalby 8eec2dbdc2
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build: bump Go toolchain to 1.26.5
Tailscale HEAD go.mod now requires go >= 1.26.5; build images pinned
1.26.4. Bump go.mod, the four Go Dockerfiles, and the nixpkgs pin
(staging-next-26.05 ships go_1_26 1.26.5; unstable still lags).
2026-07-20 12:27:47 +02:00

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# For integration testing only.
#
# Builds the Tailscale control client (integration/wasmic/wasmclient) for
# GOOS=js/GOARCH=wasm and packages it with Go's wasm_exec Node runner. The
# container idles; the integration test execs
# node /app/wasm_exec_node.js /app/client.wasm <control-url>
# to drive a real browser-style WebSocket GET against headscale's /ts2021,
# guarding the regression in issue #3357.
FROM golang:1.26.5-alpine AS build
WORKDIR /src
# Only the module metadata and the wasm client package are needed to build the
# js/wasm binary; its imports (tailscale.com/control/controlhttp, ...) resolve
# from the module proxy.
COPY go.mod go.sum ./
COPY integration/wasmic/wasmclient ./integration/wasmic/wasmclient
RUN GOOS=js GOARCH=wasm go build -o /out/client.wasm ./integration/wasmic/wasmclient \
&& cp "$(go env GOROOT)/lib/wasm/wasm_exec.js" /out/wasm_exec.js \
&& cp "$(go env GOROOT)/lib/wasm/wasm_exec_node.js" /out/wasm_exec_node.js
FROM node:24-alpine
WORKDIR /app
COPY --from=build /out/ /app/
# Idle; the test execs the client on demand with the headscale control URL.
ENTRYPOINT ["tail", "-f", "/dev/null"]