embarklabs/embark
2
0
Fork 0
mirror of https://github.com/embarklabs/embark.git synced 2025-02-17 08:07:51 +00:00
Code Issues Projects Releases Wiki Activity

chore(@embark/utils): convert utils/hosts.js to typescript

Browse Source
This commit is contained in:
Iuri Matias 2018-11-13 09:26:50 -05:00
parent 192e6e112a
commit 3986d9761c
2 changed files with 45 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
src/lib/utils/host.js
View File

@ -1,45 +0,0 @@
const isDocker = (() => {
let isDocker;
const hostname = require('os').hostname();
const pattern = new RegExp(
'[0-9]+\:[a-z_-]+\:\/docker\/' + hostname + '[0-9a-z]+', 'i'
);
try {
isDocker = require('child_process')
.execSync(
'cat /proc/self/cgroup',
{stdio: ['ignore', 'pipe', 'ignore']}
)
.toString().match(pattern) !== null;
} catch (e) {
isDocker = false;
}
return isDocker;
})();
const defaultHost = isDocker ? '0.0.0.0' : 'localhost';
// when we're runing in Docker, we can expect (generally, in a development
// scenario) that the user would like to connect to the service in the
// container via the **host's** loopback address, so this helper can be used to
// swap 0.0.0.0 for localhost in code/messages that pertain to client-side
function canonicalHost(host) {
return isDocker && host === '0.0.0.0' ? 'localhost' : host;
}
function dockerHostSwap(host) {
return (isDocker && (host === 'localhost' || host === '127.0.0.1')) ? defaultHost : host;
}
const defaultCorsHost = canonicalHost(defaultHost);
module.exports = {
canonicalHost,
defaultCorsHost,
defaultHost,
dockerHostSwap,
isDocker
};

45
src/lib/utils/host.ts Normal file
View File

@ -0,0 +1,45 @@
const isDocker = (() => {
let isDockerProcess;
const hostname = require("os").hostname();
const pattern = new RegExp(
"[0-9]+\:[a-z_-]+\:\/docker\/" + hostname + "[0-9a-z]+", "i",
);
try {
isDockerProcess = require("child_process")
.execSync(
"cat /proc/self/cgroup",
{stdio: ["ignore", "pipe", "ignore"]},
)
.toString().match(pattern) !== null;
} catch (e) {
isDockerProcess = false;
}
return isDockerProcess;
})();
const defaultHost = isDocker ? "0.0.0.0" : "localhost";
// when we"re runing in Docker, we can expect (generally, in a development
// scenario) that the user would like to connect to the service in the
// container via the **host"s** loopback address, so this helper can be used to
// swap 0.0.0.0 for localhost in code/messages that pertain to client-side
function canonicalHost(host: string): string {
return isDocker && host === "0.0.0.0" ? "localhost" : host;
}
function dockerHostSwap(host: string): string {
return (isDocker && (host === "localhost" || host === "127.0.0.1")) ? defaultHost : host;
}
const defaultCorsHost = canonicalHost(defaultHost);
export {
canonicalHost,
defaultCorsHost,
defaultHost,
dockerHostSwap,
isDocker,
};