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obsidian-livesync/src/apps/cli/testdeno/helpers/docker.ts

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TypeScript

/**
* Docker service management for tests.
*
* CouchDB start/stop/init is implemented directly using `docker` CLI commands
* and the Fetch API, so it works on any platform where Docker (Desktop) is
* available — including Windows — without needing bash.
*/
type DockerInvoker = {
bin: string;
prefix: string[];
label: string;
};
let dockerInvokerPromise: Promise<DockerInvoker> | null = null;
const DOCKER_TEE = Deno.env.get("LIVESYNC_DOCKER_TEE") === "1" || Deno.env.get("LIVESYNC_TEST_TEE") === "1";
// ---------------------------------------------------------------------------
// Low-level docker wrapper
// ---------------------------------------------------------------------------
function parseCommand(command: string): { bin: string; prefix: string[] } {
const parts = command.trim().split(/\s+/).filter(Boolean);
if (parts.length === 0) {
throw new Error("LIVESYNC_DOCKER_COMMAND is empty");
}
return { bin: parts[0], prefix: parts.slice(1) };
}
async function runCommand(bin: string, args: string[]): Promise<{ code: number; stdout: string; stderr: string }> {
const cmd = new Deno.Command(bin, {
args,
stdin: "null",
stdout: "piped",
stderr: "piped",
});
try {
const { code, stdout, stderr } = await cmd.output();
const dec = new TextDecoder();
const result = {
code,
stdout: dec.decode(stdout),
stderr: dec.decode(stderr),
};
if (DOCKER_TEE) {
if (result.stdout.trim().length > 0) {
console.log(`[docker:${bin}] ${result.stdout.trimEnd()}`);
}
if (result.stderr.trim().length > 0) {
console.error(`[docker:${bin}] ${result.stderr.trimEnd()}`);
}
}
return result;
} catch (err) {
if (err instanceof Deno.errors.NotFound) {
return {
code: 127,
stdout: "",
stderr: `Command not found: ${bin}`,
};
}
throw err;
}
}
async function resolveDockerInvoker(): Promise<DockerInvoker> {
const custom = Deno.env.get("LIVESYNC_DOCKER_COMMAND")?.trim();
if (custom) {
const parsed = parseCommand(custom);
const runner: DockerInvoker = {
...parsed,
label: `custom(${custom})`,
};
// Validate custom command eagerly so misconfiguration fails fast.
const checkArgs = runner.prefix.length === 0 ? ["--version"] : [...runner.prefix, "docker", "--version"];
const check = await runCommand(runner.bin, checkArgs);
if (check.code !== 0) {
throw new Error(`LIVESYNC_DOCKER_COMMAND is not usable: ${custom}\n${check.stderr || check.stdout}`);
}
return runner;
}
const mode = (Deno.env.get("LIVESYNC_DOCKER_MODE") ?? "auto").toLowerCase();
const onWindows = Deno.build.os === "windows";
const native: DockerInvoker = { bin: "docker", prefix: [], label: "docker" };
const wsl: DockerInvoker = { bin: "wsl", prefix: [], label: "wsl docker" };
if (mode === "native") {
return native;
}
if (mode === "wsl") {
return wsl;
}
if (mode !== "auto") {
throw new Error(`Unsupported LIVESYNC_DOCKER_MODE='${mode}'. Use auto, native, or wsl.`);
}
// On Windows we prefer `wsl docker` first, then native docker.
// This typically works better in setups where Docker is installed only in
// WSL and not exposed as docker.exe on PATH.
const candidates = onWindows ? [wsl, native] : [native, wsl];
for (const c of candidates) {
if (c.bin === "docker") {
const r = await runCommand("docker", ["--version"]);
if (r.code === 0) return c;
continue;
}
const r = await runCommand("wsl", ["docker", "--version"]);
if (r.code === 0) return c;
}
throw new Error(
[
"Docker command is not available.",
"Set one of:",
"- LIVESYNC_DOCKER_MODE=native",
"- LIVESYNC_DOCKER_MODE=wsl",
"- LIVESYNC_DOCKER_COMMAND='docker'",
"- LIVESYNC_DOCKER_COMMAND='wsl docker'",
].join("\n")
);
}
async function getDockerInvoker(): Promise<DockerInvoker> {
if (!dockerInvokerPromise) {
dockerInvokerPromise = resolveDockerInvoker().then((r) => {
console.log(`[INFO] docker runner: ${r.label}`);
return r;
});
}
return await dockerInvokerPromise;
}
async function docker(...args: string[]): Promise<{ code: number; stdout: string; stderr: string }> {
const invoker = await getDockerInvoker();
// Either:
// docker <args>
// Or:
// wsl docker <args>
const finalArgs =
invoker.prefix.length === 0
? invoker.bin === "wsl"
? ["docker", ...args]
: args
: [...invoker.prefix, ...args];
const r = await runCommand(invoker.bin, finalArgs);
return { code: r.code, stdout: r.stdout, stderr: r.stderr };
}
async function dockerOrFail(...args: string[]): Promise<string> {
const r = await docker(...args);
if (r.code !== 0) {
throw new Error(`docker ${args[0]} failed (code ${r.code}): ${r.stderr.trim()}`);
}
return r.stdout;
}
function sleep(ms: number): Promise<void> {
return new Promise((resolve) => setTimeout(resolve, ms));
}
async function waitForCouchdbStable(hostname: string, user: string, password: string): Promise<void> {
const h = hostname.replace(/\/$/, "").replace("localhost", "127.0.0.1");
const auth = btoa(`${user}:${password}`);
const headers = { Authorization: `Basic ${auth}` };
let consecutive = 0;
for (let i = 0; i < 30; i++) {
try {
const r = await fetch(`${h}/_up`, {
headers,
signal: AbortSignal.timeout(3000),
});
if (r.ok) {
consecutive++;
if (consecutive >= 3) return;
} else {
consecutive = 0;
}
} catch {
consecutive = 0;
}
await sleep(500);
}
throw new Error("CouchDB did not become stable in time");
}
// ---------------------------------------------------------------------------
// Fetch with retry (mirrors cli_test_curl_json() retry loop)
// ---------------------------------------------------------------------------
async function fetchRetry(
url: string,
init: RequestInit,
retries = 30,
delayMs = 2000,
allowStatus: number[] = []
): Promise<void> {
let lastError: unknown;
let lastStatus: number | undefined;
for (let i = 0; i < retries; i++) {
try {
const r = await fetch(url, {
signal: AbortSignal.timeout(5000),
...init,
});
lastStatus = r.status;
await r.body?.cancel().catch(() => {});
if (r.ok || allowStatus.includes(r.status)) return;
lastError = `HTTP ${r.status}`;
} catch (e) {
lastError = e;
}
await sleep(delayMs);
}
throw new Error(
`Could not reach ${url} after ${retries} retries: ${lastError} (last status: ${lastStatus ?? "N/A"})`
);
}
// ---------------------------------------------------------------------------
// CouchDB
// ---------------------------------------------------------------------------
//
// TODO: these values could be configurable via environment variables.
//
const COUCHDB_CONTAINER = "couchdb-test";
const COUCHDB_IMAGE = "couchdb:3.5.0";
const MINIO_CONTAINER = "minio-test";
const MINIO_IMAGE = "minio/minio";
const MINIO_MC_IMAGE = "minio/mc";
export async function stopCouchdb(): Promise<void> {
await docker("stop", COUCHDB_CONTAINER);
await docker("rm", COUCHDB_CONTAINER);
}
/**
* Start a CouchDB test container, initialise it, and create the test DB.
* Mirrors cli_test_start_couchdb() from test-helpers.sh, using direct
* docker / fetch calls instead of the bash util scripts.
*/
export async function startCouchdb(couchdbUri: string, user: string, password: string, dbname: string): Promise<void> {
console.log("[INFO] stopping leftover CouchDB container if present");
await stopCouchdb().catch(() => {});
console.log("[INFO] starting CouchDB test container");
await dockerOrFail(
"run",
"-d",
"--name",
COUCHDB_CONTAINER,
"-p",
// TODO: port mapping should be configurable.
"5989:5984",
"-e",
`COUCHDB_USER=${user}`,
"-e",
`COUCHDB_PASSWORD=${password}`,
"-e",
"COUCHDB_SINGLE_NODE=y",
COUCHDB_IMAGE
);
console.log("[INFO] initialising CouchDB");
await initCouchdb(couchdbUri, user, password);
console.log("[INFO] waiting for CouchDB to become stable");
await waitForCouchdbStable(couchdbUri, user, password);
console.log(`[INFO] creating test database: ${dbname}`);
await createCouchdbDatabase(couchdbUri, user, password, dbname);
}
/**
* Mirror couchdb-init.sh: configure single-node CouchDB via its REST API.
*/
async function initCouchdb(hostname: string, user: string, password: string, node = "_local"): Promise<void> {
// Podman environments often resolve localhost to ::1; use 127.0.0.1 like
// the bash script does.
const h = hostname.replace(/\/$/, "").replace("localhost", "127.0.0.1");
const auth = btoa(`${user}:${password}`);
const headers = {
"Content-Type": "application/json",
Authorization: `Basic ${auth}`,
};
const calls: Array<[string, string, string]> = [
[
"POST",
`${h}/_cluster_setup`,
JSON.stringify({
action: "enable_single_node",
username: user,
password,
bind_address: "0.0.0.0",
port: 5984,
singlenode: true,
}),
],
["PUT", `${h}/_node/${node}/_config/chttpd/require_valid_user`, '"true"'],
["PUT", `${h}/_node/${node}/_config/chttpd_auth/require_valid_user`, '"true"'],
["PUT", `${h}/_node/${node}/_config/httpd/WWW-Authenticate`, '"Basic realm=\\"couchdb\\""'],
["PUT", `${h}/_node/${node}/_config/httpd/enable_cors`, '"true"'],
["PUT", `${h}/_node/${node}/_config/chttpd/enable_cors`, '"true"'],
["PUT", `${h}/_node/${node}/_config/chttpd/max_http_request_size`, '"4294967296"'],
["PUT", `${h}/_node/${node}/_config/couchdb/max_document_size`, '"50000000"'],
["PUT", `${h}/_node/${node}/_config/cors/credentials`, '"true"'],
["PUT", `${h}/_node/${node}/_config/cors/origins`, '"*"'],
];
for (const [method, url, body] of calls) {
await fetchRetry(url, { method, headers, body });
}
}
export async function createCouchdbDatabase(
hostname: string,
user: string,
password: string,
dbname: string
): Promise<void> {
const h = hostname.replace(/\/$/, "").replace("localhost", "127.0.0.1");
const auth = btoa(`${user}:${password}`);
await fetchRetry(`${h}/${dbname}`, {
method: "PUT",
headers: { Authorization: `Basic ${auth}` },
});
}
/** Update a CouchDB document via PUT. Returns the updated document. */
export async function updateCouchdbDoc(
hostname: string,
user: string,
password: string,
docUrl: string,
updater: (doc: Record<string, unknown>) => Record<string, unknown>
): Promise<void> {
const h = hostname.replace(/\/$/, "").replace("localhost", "127.0.0.1");
const auth = btoa(`${user}:${password}`);
const headers = {
"Content-Type": "application/json",
Authorization: `Basic ${auth}`,
};
const getRes = await fetch(`${h}/${docUrl}`, { headers });
const current = (await getRes.json()) as Record<string, unknown>;
const updated = updater(current);
await fetchRetry(`${h}/${docUrl}`, {
method: "PUT",
headers,
body: JSON.stringify(updated),
});
}
// ---------------------------------------------------------------------------
// MinIO
// ---------------------------------------------------------------------------
function shQuote(value: string): string {
return `'${value.split("'").join(`'"'"'`)}'`;
}
export async function stopMinio(): Promise<void> {
await docker("stop", MINIO_CONTAINER);
await docker("rm", MINIO_CONTAINER);
}
async function initMinioBucket(
minioEndpoint: string,
accessKey: string,
secretKey: string,
bucket: string
): Promise<boolean> {
const cmd =
`mc alias set myminio ${shQuote(minioEndpoint)} ${shQuote(accessKey)} ${shQuote(secretKey)} >/dev/null 2>&1 && ` +
`mc mb --ignore-existing myminio/${shQuote(bucket)} >/dev/null 2>&1`;
const r = await docker("run", "--rm", "--network", "host", "--entrypoint", "/bin/sh", MINIO_MC_IMAGE, "-c", cmd);
return r.code === 0;
}
async function waitForMinioBucket(
minioEndpoint: string,
accessKey: string,
secretKey: string,
bucket: string
): Promise<void> {
for (let i = 0; i < 30; i++) {
const checkCmd =
`mc alias set myminio ${shQuote(minioEndpoint)} ${shQuote(accessKey)} ${shQuote(secretKey)} >/dev/null 2>&1 && ` +
`mc ls myminio/${shQuote(bucket)} >/dev/null 2>&1`;
const check = await docker(
"run",
"--rm",
"--network",
// Now I used host networking to access the container via localhost for some environments (Docker Desktop on Windows).
// We need something good idea to work across all environments.
"host",
"--entrypoint",
"/bin/sh",
MINIO_MC_IMAGE,
"-c",
checkCmd
);
if (check.code === 0) {
return;
}
await initMinioBucket(minioEndpoint, accessKey, secretKey, bucket);
await sleep(2000);
}
throw new Error(`MinIO bucket not ready: ${bucket}`);
}
export async function startMinio(
minioEndpoint: string,
accessKey: string,
secretKey: string,
bucket: string
): Promise<void> {
console.log("[INFO] stopping leftover MinIO container if present");
await stopMinio().catch(() => {});
console.log("[INFO] starting MinIO test container");
await dockerOrFail(
"run",
"-d",
"--name",
MINIO_CONTAINER,
// TODO: Ports should be configurable.
"-p",
"9000:9000",
"-p",
"9001:9001",
"-e",
`MINIO_ROOT_USER=${accessKey}`,
"-e",
`MINIO_ROOT_PASSWORD=${secretKey}`,
"-e",
`MINIO_SERVER_URL=${minioEndpoint}`,
MINIO_IMAGE,
"server",
"/data",
"--console-address",
":9001"
);
console.log(`[INFO] initialising MinIO test bucket: ${bucket}`);
let initialised = false;
for (let i = 0; i < 5; i++) {
if (await initMinioBucket(minioEndpoint, accessKey, secretKey, bucket)) {
initialised = true;
break;
}
await sleep(2000);
}
if (!initialised) {
throw new Error(`Could not initialise MinIO bucket after retries: ${bucket}`);
}
await waitForMinioBucket(minioEndpoint, accessKey, secretKey, bucket);
}
// ---------------------------------------------------------------------------
// P2P relay (strfry)
// ---------------------------------------------------------------------------
// TODO: these values could be configurable via environment variables.
const P2P_RELAY_CONTAINER = "relay-test";
const P2P_RELAY_IMAGE = "ghcr.io/hoytech/strfry:latest";
const STRFRY_BOOTSTRAP_SH = String.raw`cat > /tmp/strfry.conf <<"EOF"
db = "./strfry-db/"
relay {
bind = "0.0.0.0"
port = 7777
nofiles = 100000
info {
name = "livesync test relay"
description = "local relay for livesync p2p tests"
}
maxWebsocketPayloadSize = 131072
autoPingSeconds = 55
writePolicy {
plugin = ""
}
}
EOF
exec /app/strfry --config /tmp/strfry.conf relay`;
export async function stopP2pRelay(): Promise<void> {
await docker("stop", P2P_RELAY_CONTAINER);
await docker("rm", P2P_RELAY_CONTAINER);
}
/**
* Start the local P2P relay container through the same docker runner used
* by CouchDB helpers. This keeps process ownership consistent across
* start/stop on Windows, WSL, and native Linux/macOS.
*/
export async function startP2pRelay(): Promise<void> {
console.log("[INFO] stopping leftover P2P relay container if present");
await stopP2pRelay().catch(() => {});
console.log("[INFO] starting local P2P relay container");
await dockerOrFail(
"run",
"-d",
"--name",
P2P_RELAY_CONTAINER,
"-p",
//TODO: port mapping should be configurable.
"4000:7777",
"--tmpfs",
"/app/strfry-db:rw,size=256m",
"--entrypoint",
"sh",
P2P_RELAY_IMAGE,
"-lc",
STRFRY_BOOTSTRAP_SH
);
}
export function isLocalP2pRelay(relayUrl: string): boolean {
return relayUrl === "ws://localhost:4000" || relayUrl === "ws://localhost:4000/";
}