open-consul/ui/packages/consul-ui/app/utils/get-environment.js
John Cowen 2534eb0908
ui: Add Admin Partition feature flag (#10051)
* ui: Add Admin Partition feature flag

This adds a `PartitionEnabled`/`CONSUL_PARTITIONS_ENABLED` feature flag
that can be set during production form the consul binary, or
additionally during development/testing via cookies.

* Add partitions bookmarklet and docs, and all eng docs from main README to the docs instead.

You probably already have the app running once you need these, and it reduces the amount of text/detail in the main README

* Add the env variable section back into the README with actual env vars
2021-04-22 12:22:40 +01:00

224 lines
8.2 KiB
JavaScript

import { runInDebug } from '@ember/debug';
// 'environment' getter
// there are currently 3 levels of environment variables:
// 1. Those that can be set by the user by setting localStorage values
// 2. Those that can be set by the operator either via ui_config, or inferring
// from other server type properties (protocol)
// 3. Those that can be set only during development by adding cookie values
// via the browsers Web Inspector, or via the browsers hash (#COOKIE_NAME=1),
// which is useful for showing the UI with various settings enabled/disabled
export default function(config = {}, win = window, doc = document) {
// look at the hash in the URL and transfer anything after the hash into
// cookies to enable linking of the UI with various settings enabled
runInDebug(() => {
const cookies = function(str) {
return str
.split(';')
.map(item => item.trim())
.filter(item => item !== '')
.filter(item =>
item
.split('=')
.shift()
.startsWith('CONSUL_')
);
};
win.Scenario = function(str = '') {
if (str.length > 0) {
cookies(str).forEach(item => (doc.cookie = `${item};Path=/`));
win.location.hash = '';
location.reload();
} else {
str = cookies(doc.cookie).join(';');
const tab = win.open('', '_blank');
tab.document.write(
`<body><pre>${location.href}#${str}</pre><br /><a href="javascript:Scenario('${str}')">Scenario</a></body>`
);
}
};
if (
typeof win.location !== 'undefined' &&
typeof win.location.hash === 'string' &&
win.location.hash.length > 0
) {
win.Scenario(win.location.hash.substr(1));
}
});
const dev = function(str = doc.cookie) {
return str
.split(';')
.filter(item => item !== '')
.map(item => {
const [key, ...rest] = item.trim().split('=');
return [key, rest.join('=')];
});
};
const user = function(str) {
const item = win.localStorage.getItem(str);
return item === null ? undefined : item;
};
const getResourceFor = function(src) {
try {
return (
win.performance.getEntriesByType('resource').find(item => {
return item.initiatorType === 'script' && src === item.name;
}) || {}
);
} catch (e) {
return {};
}
};
const operatorConfig = JSON.parse(
doc.querySelector(`[data-${config.modulePrefix}-config]`).textContent
);
const ui_config = operatorConfig.UIConfig || {};
const scripts = doc.getElementsByTagName('script');
// we use the currently executing script as a reference
// to figure out where we are for other things such as
// base url, api url etc
const currentSrc = scripts[scripts.length - 1].src;
let resource;
// TODO: Potentially use ui_config {}, for example
// turning off blocking queries if its a busy cluster
// forcing/providing amount of possible HTTP connections
// re-setting the base url for the API etc
const operator = function(str, env) {
let protocol, dashboards, provider, proxy;
switch (str) {
case 'CONSUL_NSPACES_ENABLED':
return typeof operatorConfig.NamespacesEnabled === 'undefined'
? false
: operatorConfig.NamespacesEnabled;
case 'CONSUL_SSO_ENABLED':
return typeof operatorConfig.SSOEnabled === 'undefined' ? false : operatorConfig.SSOEnabled;
case 'CONSUL_ACLS_ENABLED':
return typeof operatorConfig.ACLsEnabled === 'undefined'
? false
: operatorConfig.ACLsEnabled;
case 'CONSUL_PARTITIONS_ENABLED':
return typeof operatorConfig.PartitionsEnabled === 'undefined'
? false
: operatorConfig.PartitionsEnabled;
case 'CONSUL_DATACENTER_LOCAL':
return operatorConfig.LocalDatacenter;
case 'CONSUL_UI_CONFIG':
dashboards = {};
provider = env('CONSUL_METRICS_PROVIDER');
proxy = env('CONSUL_METRICS_PROXY_ENABLED');
dashboards.service = env('CONSUL_SERVICE_DASHBOARD_URL');
if (provider) {
ui_config.metrics_provider = provider;
}
if (proxy) {
ui_config.metrics_proxy_enabled = proxy;
}
if (dashboards.service) {
ui_config.dashboard_url_templates = dashboards;
}
return ui_config;
case 'CONSUL_BASE_UI_URL':
return currentSrc
.split('/')
.slice(0, -2)
.join('/');
case 'CONSUL_HTTP_PROTOCOL':
if (typeof resource === 'undefined') {
// resource needs to be retrieved lazily as entries aren't guaranteed
// to be available at script execution time (caching seems to affect this)
// waiting until we retrieve this value lazily at runtime means that
// the entries are always available as these values are only retrieved
// after initialization
// current is based on the assumption that whereever this script is it's
// likely to be the same as the xmlhttprequests
resource = getResourceFor(currentSrc);
}
return resource.nextHopProtocol || 'http/1.1';
case 'CONSUL_HTTP_MAX_CONNECTIONS':
protocol = env('CONSUL_HTTP_PROTOCOL');
// http/2, http2+QUIC/39 and SPDY don't have connection limits
switch (true) {
case protocol.indexOf('h2') === 0:
case protocol.indexOf('hq') === 0:
case protocol.indexOf('spdy') === 0:
// TODO: Change this to return -1 so we try to consistently
// return a value from env vars
return;
default:
// generally 6 are available
// reserve 1 for traffic that we can't manage
return 5;
}
}
};
const ui = function(key) {
let $;
switch (config.environment) {
case 'development':
case 'staging':
case 'coverage':
case 'test':
$ = dev().reduce(function(prev, [key, value]) {
switch (key) {
case 'CONSUL_ACLS_ENABLE':
prev['CONSUL_ACLS_ENABLED'] = !!JSON.parse(String(value).toLowerCase());
break;
case 'CONSUL_NSPACES_ENABLE':
prev['CONSUL_NSPACES_ENABLED'] = !!JSON.parse(String(value).toLowerCase());
break;
case 'CONSUL_SSO_ENABLE':
prev['CONSUL_SSO_ENABLED'] = !!JSON.parse(String(value).toLowerCase());
break;
case 'CONSUL_PARTITIONS_ENABLE':
prev['CONSUL_PARTITIONS_ENABLED'] = !!JSON.parse(String(value).toLowerCase());
break;
case 'CONSUL_METRICS_PROXY_ENABLE':
prev['CONSUL_METRICS_PROXY_ENABLED'] = !!JSON.parse(String(value).toLowerCase());
break;
case 'CONSUL_UI_CONFIG':
prev['CONSUL_UI_CONFIG'] = JSON.parse(value);
break;
default:
prev[key] = value;
}
return prev;
}, {});
if (typeof $[key] !== 'undefined') {
return $[key];
}
break;
}
return config[key];
};
return function env(str) {
switch (str) {
// All user providable values should start with CONSUL_UI
// We allow the user to set these ones via localStorage
// user value is preferred.
case 'CONSUL_UI_DISABLE_REALTIME':
case 'CONSUL_UI_DISABLE_ANCHOR_SELECTION':
// these are booleans cast things out
return !!JSON.parse(String(user(str) || 0).toLowerCase()) || ui(str);
case 'CONSUL_UI_REALTIME_RUNNER':
// these are strings
return user(str) || ui(str);
case 'CONSUL_UI_CONFIG':
case 'CONSUL_DATACENTER_LOCAL':
case 'CONSUL_ACLS_ENABLED':
case 'CONSUL_NSPACES_ENABLED':
case 'CONSUL_SSO_ENABLED':
case 'CONSUL_PARTITIONS_ENABLED':
case 'CONSUL_METRICS_PROVIDER':
case 'CONSUL_METRICS_PROXY_ENABLE':
case 'CONSUL_SERVICE_DASHBOARD_URL':
case 'CONSUL_BASE_UI_URL':
case 'CONSUL_HTTP_PROTOCOL':
case 'CONSUL_HTTP_MAX_CONNECTIONS':
// We allow the operator to set these ones via various methods
// although UI developer config is preferred
return ui(str) || operator(str, env);
default:
return ui(str);
}
};
}