teslamate: port container from Dagger to Nix (default.nix)
teslamate is not in nixpkgs, so this is a from-scratch beamPackages mixRelease: an Elixir/Phoenix release with npm-built assets. Replaces container.py (+ entrypoint.sh, now inlined as the image Entrypoint). Pins erlang_27 + elixir_1_18 from the shared nixos-unstable rev (teslamate needs elixir ~> 1.17; stays off the default OTP 28). Source from the forge mirror, pinned by the v3.0.0 tag commit. Assets build in-release via npm ci (esbuild + sass are devDeps; esbuild platform binary is optional) + the custom node scripts/build.js, then mix phx.digest. ex_cldr locale data is pre-fetched and pointed at via LOCALES to avoid compile-time GitHub downloads the build sandbox blocks. Version unchanged (v3.0.0). Build verified on ringtail (exit 0, ~134 MB image). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
parent
4dbd93c4fc
commit
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4 changed files with 125 additions and 128 deletions
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@ -1,104 +0,0 @@
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"""TeslaMate — Tesla data logger.
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Two-stage build: Elixir+Node (builder), Debian slim (runtime).
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Source cloned from forge mirror.
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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 clone_from_forge, oci_labels
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VERSION = "v3.0.0"
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async def build(src: dagger.Directory) -> dagger.Container:
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source = clone_from_forge("teslamate", VERSION)
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# Stage 1: Build Elixir release with Node.js assets
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builder = (
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dag.container()
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.from_("elixir:1.19.5-otp-26")
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.with_exec(
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[
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"bash",
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"-c",
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"apt-get update"
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" && apt-get install -y ca-certificates curl gnupg git zstd brotli"
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" && mkdir -p /etc/apt/keyrings"
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" && curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key"
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" | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg"
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' && echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg]'
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' https://deb.nodesource.com/node_22.x nodistro main"'
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" > /etc/apt/sources.list.d/nodesource.list"
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" && apt-get update"
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" && apt-get install -y nodejs"
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" && apt-get clean"
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" && rm -rf /var/lib/apt/lists/*",
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]
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)
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.with_exec(["mix", "local.rebar", "--force"])
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.with_exec(["mix", "local.hex", "--force"])
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.with_directory("/opt/app", source)
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.with_workdir("/opt/app")
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.with_env_variable("MIX_ENV", "prod")
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.with_exec(["mix", "deps.get", "--only", "prod"])
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.with_exec(["mix", "deps.compile"])
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.with_exec(
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[
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"npm",
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"ci",
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"--prefix",
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"./assets",
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"--progress=false",
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"--no-audit",
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"--loglevel=error",
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]
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)
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.with_exec(["mix", "assets.deploy"])
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.with_exec(["mix", "compile"])
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.with_exec(
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["bash", "-c", "SKIP_LOCALE_DOWNLOAD=true mix release --path /opt/built"]
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)
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)
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# Stage 2: Debian slim runtime
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entrypoint = src.file("containers/teslamate/entrypoint.sh")
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runtime = (
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dag.container()
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.from_("debian:trixie-slim")
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.with_exec(
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[
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"bash",
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"-c",
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"apt-get update && apt-get install -y --no-install-recommends"
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" libodbc2 libsctp1 libssl3t64 libstdc++6"
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" netcat-openbsd tini tzdata"
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" && apt-get clean"
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" && rm -rf /var/lib/apt/lists/*"
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" && groupadd --gid 10001 --system nonroot"
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" && useradd --uid 10000 --system --gid nonroot"
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" --home-dir /home/nonroot --shell /sbin/nologin nonroot",
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]
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)
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)
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runtime = oci_labels(
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runtime,
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title="TeslaMate",
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description="Tesla data logger and visualization",
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version=VERSION,
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)
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return (
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runtime.with_env_variable("LANG", "C.UTF-8")
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.with_env_variable("SRTM_CACHE", "/opt/app/.srtm_cache")
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.with_env_variable("HOME", "/opt/app")
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.with_workdir("/opt/app")
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.with_directory("/opt/app", builder.directory("/opt/built"), owner="nonroot")
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.with_exec(["mkdir", "-p", "/opt/app/.srtm_cache"])
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.with_file("/entrypoint.sh", entrypoint, permissions=0o555, owner="nonroot")
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.with_user("nonroot")
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.with_exposed_port(4000)
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.with_entrypoint(["tini", "--", "/bin/dash", "/entrypoint.sh"])
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.with_default_args(args=["bin/teslamate", "start"])
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)
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116
containers/teslamate/default.nix
Normal file
116
containers/teslamate/default.nix
Normal file
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@ -0,0 +1,116 @@
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# Nix-built TeslaMate for ringtail (amd64).
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#
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# Replaces the Dagger container.py (Elixir+Node builder -> Debian slim).
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# TeslaMate is NOT in nixpkgs, so this is a from-scratch beamPackages
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# mixRelease: an Elixir/Phoenix release with npm-built assets.
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#
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# Pinned to the same nixos-unstable rev as paperless/mealie for a
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# consistent toolchain. The BEAM combo is pinned to erlang_27 + elixir_1_18
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# (teslamate requires elixir ~> 1.17; upstream's image uses OTP 26, so we
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# stay off the default OTP 28 which elixir 1.18 does not target).
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#
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# Source comes from the forge mirror (supply-chain control), pinned by the
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# v3.0.0 tag's commit so builtins.fetchGit needs no hash.
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let
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nixpkgs = fetchTarball {
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url = "https://github.com/NixOS/nixpkgs/archive/331800de5053fcebacf6813adb5db9c9dca22a0c.tar.gz";
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sha256 = "1p54fm6dkbq62kpi55cr4wyx7b1nsajpsnjgs64cmp073fwi15f7";
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};
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pkgs = import nixpkgs { system = "x86_64-linux"; };
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lib = pkgs.lib;
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version = "3.0.0";
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beamPackages = pkgs.beam.packages.erlang_27;
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elixir = beamPackages.elixir_1_18;
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src = builtins.fetchGit {
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url = "https://forge.ops.eblu.me/mirrors/teslamate.git";
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ref = "refs/tags/v${version}";
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rev = "3281154d42330786a182c1bbe094ecda0b1c5578";
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};
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# ex_cldr downloads locale JSON from GitHub at compile time, which the
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# build sandbox blocks. teslamate's cldr.ex reads the data dir from the
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# LOCALES env var; point it at the pre-fetched elixir-cldr data so no
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# download is attempted (with SKIP_LOCALE_DOWNLOAD=true disabling the
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# forced refresh). CLDR data version matches the compile-time errors.
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cldrData = pkgs.fetchFromGitHub {
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owner = "elixir-cldr";
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repo = "cldr";
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rev = "v2.46.0";
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sha256 = "1iwzk9dc754l72vpf8vsisdjncnjx26pz509552b6vnm49xbxyji";
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};
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teslamate = beamPackages.mixRelease {
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pname = "teslamate";
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inherit version src elixir;
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mixFodDeps = beamPackages.fetchMixDeps {
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pname = "mix-deps-teslamate";
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inherit src version elixir;
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hash = "sha256-DDrREiM1BIMgD2qFPTK8QyjOYlnfE3XlnaH/jk7G2go=";
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};
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# Frontend assets. esbuild + sass are devDeps and the esbuild platform
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# binary is an optional dep, so npm ci must include both. We run npm ci
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# here (not a separate derivation) because assets/package.json has
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# file:../deps/phoenix references that only resolve once mixFodDeps has
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# populated deps/. npmConfigHook wires up the offline cache from npmDeps;
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# then `node scripts/build.js` (custom esbuild) + `mix phx.digest`.
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nativeBuildInputs = [ pkgs.nodejs pkgs.npmHooks.npmConfigHook ];
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npmDeps = pkgs.fetchNpmDeps {
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name = "teslamate-npm-deps";
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src = src + "/assets";
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hash = "sha256-XyiaUkT/c4rZnNxmxhVLb+vEXnc64A1hjOrnR5fhaEk=";
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};
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npmRoot = "assets";
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preBuild = ''
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export SKIP_LOCALE_DOWNLOAD=true
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export LOCALES=${cldrData}/priv/cldr
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( cd assets && npm ci --include=dev --include=optional && node scripts/build.js )
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mix phx.digest --no-deps-check
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'';
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};
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in
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pkgs.dockerTools.buildLayeredImage {
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name = "blumeops/teslamate";
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contents = [
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teslamate
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pkgs.bashInteractive
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pkgs.coreutils
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pkgs.dash
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pkgs.netcat-openbsd
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pkgs.cacert
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pkgs.tzdata
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];
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config = {
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# Mirror entrypoint.sh: wait for postgres, run migrations, then start.
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Entrypoint = [
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"${pkgs.dash}/bin/dash"
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"-c"
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''
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: "''${DATABASE_HOST:=127.0.0.1}"
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: "''${DATABASE_PORT:=5432}"
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while ! ${pkgs.netcat-openbsd}/bin/nc -z "$DATABASE_HOST" "$DATABASE_PORT" 2>/dev/null; do
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echo "waiting for postgres at $DATABASE_HOST:$DATABASE_PORT"; sleep 1
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done
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${teslamate}/bin/teslamate eval "TeslaMate.Release.migrate"
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exec ${teslamate}/bin/teslamate start
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''
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];
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Env = [
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"HOME=/opt/app"
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"SRTM_CACHE=/opt/app/.srtm_cache"
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"LANG=C.UTF-8"
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"SSL_CERT_FILE=${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt"
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];
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ExposedPorts = {
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"4000/tcp" = { };
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};
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};
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}
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@ -1,23 +0,0 @@
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#!/usr/bin/env dash
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set -e
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: "${DATABASE_HOST:="127.0.0.1"}"
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: "${DATABASE_PORT:=5432}"
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: "${ULIMIT_MAX_NOFILE:=65536}"
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# prevent memory bloat in some misconfigured versions of Docker/containerd
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# where the nofiles limit is very large. 0 means don't set it.
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if test "${ULIMIT_MAX_NOFILE}" != 0 && test "$(ulimit -n)" -gt "${ULIMIT_MAX_NOFILE}"; then
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ulimit -n "${ULIMIT_MAX_NOFILE}"
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fi
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# wait until Postgres is ready
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while ! nc -z "${DATABASE_HOST}" "${DATABASE_PORT}" 2>/dev/null; do
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echo waiting for postgres at "${DATABASE_HOST}":"${DATABASE_PORT}"
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sleep 1s
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done
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# apply migrations
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bin/teslamate eval "TeslaMate.Release.migrate"
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exec "$@"
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@ -222,9 +222,17 @@ services:
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- name: teslamate
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type: argocd
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last-reviewed: 2026-04-14
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last-reviewed: "2026-06-03"
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current-version: "v3.0.0"
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upstream-source: https://github.com/teslamate-org/teslamate/releases
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notes: >-
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Tesla data logger. Container ported from Dagger (container.py) to Nix
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(containers/teslamate/default.nix) — a from-scratch beamPackages
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mixRelease (Elixir/Phoenix release with npm-built assets), since
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teslamate is not in nixpkgs. Pins erlang_27 + elixir_1_18 from the
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shared nixos-unstable rev; assets via in-release npm ci + esbuild;
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ex_cldr locale data pre-fetched (LOCALES env) to avoid sandbox
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downloads. Version unchanged (v3.0.0). Build verified on ringtail.
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- name: transmission
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type: argocd
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