66 lines
2.7 KiB
JavaScript
66 lines
2.7 KiB
JavaScript
import { CredentialsProviderError } from "@smithy/property-provider";
|
|
import { parse } from "url";
|
|
import { httpRequest } from "./remoteProvider/httpRequest";
|
|
import { fromImdsCredentials, isImdsCredentials } from "./remoteProvider/ImdsCredentials";
|
|
import { providerConfigFromInit } from "./remoteProvider/RemoteProviderInit";
|
|
import { retry } from "./remoteProvider/retry";
|
|
export const ENV_CMDS_FULL_URI = "AWS_CONTAINER_CREDENTIALS_FULL_URI";
|
|
export const ENV_CMDS_RELATIVE_URI = "AWS_CONTAINER_CREDENTIALS_RELATIVE_URI";
|
|
export const ENV_CMDS_AUTH_TOKEN = "AWS_CONTAINER_AUTHORIZATION_TOKEN";
|
|
export const fromContainerMetadata = (init = {}) => {
|
|
const { timeout, maxRetries } = providerConfigFromInit(init);
|
|
return () => retry(async () => {
|
|
const requestOptions = await getCmdsUri();
|
|
const credsResponse = JSON.parse(await requestFromEcsImds(timeout, requestOptions));
|
|
if (!isImdsCredentials(credsResponse)) {
|
|
throw new CredentialsProviderError("Invalid response received from instance metadata service.");
|
|
}
|
|
return fromImdsCredentials(credsResponse);
|
|
}, maxRetries);
|
|
};
|
|
const requestFromEcsImds = async (timeout, options) => {
|
|
if (process.env[ENV_CMDS_AUTH_TOKEN]) {
|
|
options.headers = {
|
|
...options.headers,
|
|
Authorization: process.env[ENV_CMDS_AUTH_TOKEN],
|
|
};
|
|
}
|
|
const buffer = await httpRequest({
|
|
...options,
|
|
timeout,
|
|
});
|
|
return buffer.toString();
|
|
};
|
|
const CMDS_IP = "169.254.170.2";
|
|
const GREENGRASS_HOSTS = {
|
|
localhost: true,
|
|
"127.0.0.1": true,
|
|
};
|
|
const GREENGRASS_PROTOCOLS = {
|
|
"http:": true,
|
|
"https:": true,
|
|
};
|
|
const getCmdsUri = async () => {
|
|
if (process.env[ENV_CMDS_RELATIVE_URI]) {
|
|
return {
|
|
hostname: CMDS_IP,
|
|
path: process.env[ENV_CMDS_RELATIVE_URI],
|
|
};
|
|
}
|
|
if (process.env[ENV_CMDS_FULL_URI]) {
|
|
const parsed = parse(process.env[ENV_CMDS_FULL_URI]);
|
|
if (!parsed.hostname || !(parsed.hostname in GREENGRASS_HOSTS)) {
|
|
throw new CredentialsProviderError(`${parsed.hostname} is not a valid container metadata service hostname`, false);
|
|
}
|
|
if (!parsed.protocol || !(parsed.protocol in GREENGRASS_PROTOCOLS)) {
|
|
throw new CredentialsProviderError(`${parsed.protocol} is not a valid container metadata service protocol`, false);
|
|
}
|
|
return {
|
|
...parsed,
|
|
port: parsed.port ? parseInt(parsed.port, 10) : undefined,
|
|
};
|
|
}
|
|
throw new CredentialsProviderError("The container metadata credential provider cannot be used unless" +
|
|
` the ${ENV_CMDS_RELATIVE_URI} or ${ENV_CMDS_FULL_URI} environment` +
|
|
" variable is set", false);
|
|
};
|