Add basics for secret management by Docker 1.13

See https://docs.docker.com/engine/swarm/secrets/

1 files changed, 28 insertions, 24 deletions

diff --git a/lib/config.js b/lib/config.js
index f6e7f2c4..ab2f67b5 100644
--- a/lib/config.js
+++ b/lib/config.js
@@ -1,11 +1,15 @@
 // external modules
 var path = require('path');
+var fs = require('fs');
 
 // configs
 var env = process.env.NODE_ENV || 'development';
 var config = require(path.join(__dirname, '..', 'config.json'))[env];
 var debug = process.env.DEBUG ? (process.env.DEBUG === 'true') : ((typeof config.debug === 'boolean') ? config.debug : (env === 'development'));
 
+// Create function that reads docker secrets but fails fast in case of a non docker environment
+var handleDockerSecret = fs.existsSync('/run/secrets/') ? function(secret){return fs.existsSync('/run/secrets/' + secret) ? fs.readFileSync('/run/secrets/' + secret) : null;)} : function () {return null}
+
 // url
 var domain = process.env.DOMAIN || process.env.HMD_DOMAIN || config.domain || '';
 var urlpath = process.env.URL_PATH || process.env.HMD_URL_PATH || config.urlpath || '';
@@ -28,10 +32,10 @@ var dburl = config.dburl || process.env.HMD_DB_URL || process.env.DATABASE_URL;
 var db = config.db || {};
 
 // ssl path
-var sslkeypath = config.sslkeypath || '';
-var sslcertpath = config.sslcertpath || '';
-var sslcapath = config.sslcapath || '';
-var dhparampath = config.dhparampath || '';
+var sslkeypath = (fs.existsSync('/run/secrets/key.pem') ? '/run/secrets/key.pem' : null) || config.sslkeypath || '';
+var sslcertpath = (fs.existsSync('/run/secrets/cert.pem') ? '/run/secrets/cert.pem' : null) || config.sslcertpath || '';
+var sslcapath = (fs.existsSync('/run/secrets/ca.pem') ? '/run/secrets/ca.pem' : null) || config.sslcapath || '';
+var dhparampath = (fs.existsSync('/run/secrets/dhparam.pem') ? '/run/secrets/dhparam.pem' : null) || config.dhparampath || '';
 
 // other path
 var tmppath = config.tmppath || './tmp';
@@ -45,7 +49,7 @@ var slidepath = config.slidepath || './public/views/slide.ejs';
 
 // session
 var sessionname = config.sessionname || 'connect.sid';
-var sessionsecret = config.sessionsecret || 'secret';
+var sessionsecret = handleDockerSecret('sessionsecret') || config.sessionsecret || 'secret';
 var sessionlife = config.sessionlife || 14 * 24 * 60 * 60 * 1000; //14 days
 
 // static files
@@ -63,35 +67,35 @@ var imageUploadType = process.env.HMD_IMAGE_UPLOAD_TYPE || config.imageUploadTyp
 
 config.s3 = config.s3 || {};
 var s3 = {
-    accessKeyId: process.env.HMD_S3_ACCESS_KEY_ID || config.s3.accessKeyId,
-    secretAccessKey: process.env.HMD_S3_SECRET_ACCESS_KEY || config.s3.secretAccessKey,
+    accessKeyId: handleDockerSecret('s3_acccessKeyId') || process.env.HMD_S3_ACCESS_KEY_ID || config.s3.accessKeyId,
+    secretAccessKey: handleDockerSecret('s3_secretAccessKey') || process.env.HMD_S3_SECRET_ACCESS_KEY || config.s3.secretAccessKey,
     region: process.env.HMD_S3_REGION || config.s3.region
 }
 var s3bucket = process.env.HMD_S3_BUCKET || config.s3.bucket;
 
 // auth
-var facebook = (process.env.HMD_FACEBOOK_CLIENTID && process.env.HMD_FACEBOOK_CLIENTSECRET) ? {
-    clientID: process.env.HMD_FACEBOOK_CLIENTID,
-    clientSecret: process.env.HMD_FACEBOOK_CLIENTSECRET
+var facebook = (process.env.HMD_FACEBOOK_CLIENTID && process.env.HMD_FACEBOOK_CLIENTSECRET || fs.existsSync('/run/secrets/facebook_clientID') && fs.existsSync('/run/secrets/facebook_clientSecret')) ? {
+    clientID: handleDockerSecret('facebook_clientID') || process.env.HMD_FACEBOOK_CLIENTID,
+    clientSecret: handleDockerSecret('facebook_clientSecret') || process.env.HMD_FACEBOOK_CLIENTSECRET
 } : config.facebook || false;
-var twitter = (process.env.HMD_TWITTER_CONSUMERKEY && process.env.HMD_TWITTER_CONSUMERSECRET) ? {
-    consumerKey: process.env.HMD_TWITTER_CONSUMERKEY,
-    consumerSecret: process.env.HMD_TWITTER_CONSUMERSECRET
+var twitter = (process.env.HMD_TWITTER_CONSUMERKEY && process.env.HMD_TWITTER_CONSUMERSECRET || fs.existsSync('/run/secrets/twitter_consumerKey') && fs.existsSync('/run/secrets/twitter_consumerSecret')) ? {
+    consumerKey: handleDockerSecret('twitter_consumerKey') || process.env.HMD_TWITTER_CONSUMERKEY,
+    consumerSecret: handleDockerSecret('twitter_consumerSecret') || process.env.HMD_TWITTER_CONSUMERSECRET
 } : config.twitter || false;
-var github = (process.env.HMD_GITHUB_CLIENTID && process.env.HMD_GITHUB_CLIENTSECRET) ? {
-    clientID: process.env.HMD_GITHUB_CLIENTID,
-    clientSecret: process.env.HMD_GITHUB_CLIENTSECRET
+var github = (process.env.HMD_GITHUB_CLIENTID && process.env.HMD_GITHUB_CLIENTSECRET || fs.existsSync('/run/secrets/github_clientID') && fs.existsSync('/run/secrets/github_clientSecret')) ? {
+    clientID: handleDockerSecret('github_clientID') || process.env.HMD_GITHUB_CLIENTID,
+    clientSecret: handleDockerSecret('github_clientSecret') || process.env.HMD_GITHUB_CLIENTSECRET
 } : config.github || false;
-var gitlab = (process.env.HMD_GITLAB_CLIENTID && process.env.HMD_GITLAB_CLIENTSECRET) ? {
+var gitlab = (process.env.HMD_GITLAB_CLIENTID && process.env.HMD_GITLAB_CLIENTSECRET || fs.existsSync('/run/secrets/gitlab_clientID') && fs.existsSync('/run/secrets/gitlab_clientSecret')) ? {
     baseURL: process.env.HMD_GITLAB_BASEURL,
-    clientID: process.env.HMD_GITLAB_CLIENTID,
-    clientSecret: process.env.HMD_GITLAB_CLIENTSECRET
+    clientID: handleDockerSecret('gitlab_clientID') || process.env.HMD_GITLAB_CLIENTID,
+    clientSecret: handleDockerSecret('gitlab_clientSecret') || process.env.HMD_GITLAB_CLIENTSECRET
 } : config.gitlab || false;
-var dropbox = (process.env.HMD_DROPBOX_CLIENTID && process.env.HMD_DROPBOX_CLIENTSECRET) ? {
-    clientID: process.env.HMD_DROPBOX_CLIENTID,
-    clientSecret: process.env.HMD_DROPBOX_CLIENTSECRET
+var dropbox = (process.env.HMD_DROPBOX_CLIENTID && process.env.HMD_DROPBOX_CLIENTSECRET || fs.existsSync('/run/secrets/dropbox_clientID') && fs.existsSync('/run/secrets/dropbox_clientSecret')) ? {
+    clientID: handleDockerSecret('dropbox_clientID') || process.env.HMD_DROPBOX_CLIENTID,
+    clientSecret: handleDockerSecret('dropbox_clientSecret') || process.env.HMD_DROPBOX_CLIENTSECRET
 } : config.dropbox || false;
-var google = (process.env.HMD_GOOGLE_CLIENTID && process.env.HMD_GOOGLE_CLIENTSECRET) ? {
+var google = (process.env.HMD_GOOGLE_CLIENTID && process.env.HMD_GOOGLE_CLIENTSECRET || fs.existsSync('/run/secrets/google_clientID') && fs.existsSync('/run/secrets/google_clientSecret')) ? {
     clientID: process.env.HMD_GOOGLE_CLIENTID,
     clientSecret: process.env.HMD_GOOGLE_CLIENTSECRET
 } : config.google || false;
@@ -130,7 +134,7 @@ if (process.env.HMD_LDAP_TLS_CA) {
 if (process.env.HMD_LDAP_PROVIDERNAME) {
     ldap.providerName = process.env.HMD_LDAP_PROVIDERNAME;
 }
-var imgur = process.env.HMD_IMGUR_CLIENTID || config.imgur || false;
+var imgur = handleDockerSecret('imgur_clientid') || process.env.HMD_IMGUR_CLIENTID || config.imgur || false;
 var email = process.env.HMD_EMAIL ? (process.env.HMD_EMAIL === 'true') : !!config.email;
 var allowemailregister = process.env.HMD_ALLOW_EMAIL_REGISTER ? (process.env.HMD_ALLOW_EMAIL_REGISTER === 'true') : ((typeof config.allowemailregister === 'boolean') ? config.allowemailregister : true);