95 lines
2.9 KiB
Python
95 lines
2.9 KiB
Python
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"""Grafana Alloy — telemetry collector, native Dagger build.
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Three-stage build: Node (UI), Go (server via upstream Makefile with embedded
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UI assets), Alpine (runtime). Source cloned from forge mirror.
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Notes:
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- Builds via `make alloy` rather than plain `go build` so version stamping,
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release flags, and the netgo+embedalloyui tags match upstream releases.
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- promtail_journal_enabled is intentionally omitted: it requires
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libsystemd-dev and our k8s deployments read pod logs from the filesystem,
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not journald.
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- Uses golang:alpine3.23 (currently Go 1.26.2 — matches alloy v1.16.0's
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go.mod toolchain requirement and the go_build helper's image choice).
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"""
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import dagger
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from dagger import dag
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from blumeops.containers import (
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alpine_runtime,
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clone_from_forge,
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node_build,
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oci_labels,
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)
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VERSION = "v1.16.0"
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async def build(src: dagger.Directory) -> dagger.Container:
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source = clone_from_forge("alloy", VERSION)
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# Stage 1: Build the web UI (tsc + vite, not the package.json default).
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ui = node_build(
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source,
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"internal/web/ui",
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build_cmd=["sh", "-c", "npx tsc -b && npx vite build"],
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)
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# Stage 2: Build alloy via the upstream Makefile with embedded UI assets.
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builder = (
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dag.container()
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.from_("golang:alpine3.23")
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.with_exec(["apk", "add", "--no-cache", "build-base", "git", "make"])
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.with_directory("/app", source)
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.with_directory(
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"/app/internal/web/ui/dist",
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ui.directory("/app/internal/web/ui/dist"),
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)
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.with_workdir("/app")
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.with_env_variable("CGO_ENABLED", "1")
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.with_env_variable("RELEASE_BUILD", "1")
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.with_env_variable("VERSION", VERSION)
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.with_env_variable("GO_TAGS", "netgo embedalloyui")
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.with_env_variable("SKIP_UI_BUILD", "1")
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.with_exec(["make", "alloy"])
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)
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# Stage 3: Runtime as uid/gid 473 alloy.
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runtime = alpine_runtime(
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extra_apk=["ca-certificates", "tzdata"],
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uid=473,
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gid=473,
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username="alloy",
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)
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runtime = oci_labels(
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runtime,
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title="Alloy",
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description="Grafana Alloy is an OpenTelemetry Collector distribution",
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version=VERSION,
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)
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return (
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runtime.with_file(
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"/bin/alloy",
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builder.file("/app/build/alloy"),
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permissions=0o555,
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)
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.with_exec(
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[
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"sh",
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"-c",
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"mkdir -p /var/lib/alloy/data && chown -R alloy:alloy /var/lib/alloy",
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]
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)
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.with_env_variable("ALLOY_DEPLOY_MODE", "docker")
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.with_exposed_port(12345)
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.with_user("alloy")
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.with_entrypoint(["/bin/alloy"])
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.with_default_args(
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args=[
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"run",
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"/etc/alloy/config.alloy",
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"--storage.path=/var/lib/alloy/data",
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]
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)
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)
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