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Adding shouldforce logic to pick each sidecar individually #133

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Adding shouldforce logic to pick each sidecar individually #133

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66848cd
adding local changes
Aug 4, 2023
7bc7231
adding changes, removing logs
Aug 5, 2023
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8 changes: 4 additions & 4 deletions src/index.js
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Original file line number Diff line number Diff line change
@@ -1,10 +1,10 @@
var worker = require('./lib/worker');
var worker = require("./lib/worker");

console.log('Starting up mongo-k8s-sidecar');
console.log("Starting up mongo-k8s-sidecar");

worker.init(function(err) {
worker.init(function (err) {
if (err) {
console.error('Error trying to initialize mongo-k8s-sidecar', err);
console.error("Error trying to initialize mongo-k8s-sidecar", err);
return;
}

Expand Down
155 changes: 97 additions & 58 deletions src/lib/mongo.js
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Original file line number Diff line number Diff line change
@@ -1,18 +1,20 @@
var Db = require('mongodb').Db;
var MongoServer = require('mongodb').Server;
var async = require('async');
var config = require('./config');
var Db = require("mongodb").Db;
var MongoServer = require("mongodb").Server;
var async = require("async");
var config = require("./config");

var localhost = '127.0.0.1'; //Can access mongo as localhost from a sidecar
var localhost = "127.0.0.1"; //Can access mongo as localhost from a sidecar

var getDb = function(host, done) {
var getDb = function (host, done) {
//If they called without host like getDb(function(err, db) { ... });
if (arguments.length === 1) {
if (typeof arguments[0] === 'function') {
if (typeof arguments[0] === "function") {
done = arguments[0];
host = localhost;
} else {
throw new Error('getDb illegal invocation. User either getDb(\'options\', function(err, db) { ... }) OR getDb(function(err, db) { ... })');
throw new Error(
"getDb illegal invocation. User either getDb('options', function(err, db) { ... }) OR getDb(function(err, db) { ... })"
);
}
}

Expand All @@ -23,33 +25,39 @@ var getDb = function(host, done) {
mongoOptions = {
ssl: config.mongoSSLEnabled,
sslAllowInvalidCertificates: config.mongoSSLAllowInvalidCertificates,
sslAllowInvalidHostnames: config.mongoSSLAllowInvalidHostnames
}
sslAllowInvalidHostnames: config.mongoSSLAllowInvalidHostnames,
};
}

var mongoDb = new Db(config.database, new MongoServer(host, config.mongoPort, mongoOptions));
var mongoDb = new Db(
config.database,
new MongoServer(host, config.mongoPort, mongoOptions)
);

mongoDb.open(function (err, db) {
if (err) {
return done(err);
}

if(config.username) {
mongoDb.authenticate(config.username, config.password, function(err, result) {
if (err) {
return done(err);
}
if (config.username) {
mongoDb.authenticate(
config.username,
config.password,
function (err, result) {
if (err) {
return done(err);
}

return done(null, db);
});
return done(null, db);
}
);
} else {
return done(null, db);
}

});
};

var replSetGetConfig = function(db, done) {
var replSetGetConfig = function (db, done) {
db.admin().command({ replSetGetConfig: 1 }, {}, function (err, results) {
if (err) {
return done(err);
Expand All @@ -59,7 +67,7 @@ var replSetGetConfig = function(db, done) {
});
};

var replSetGetStatus = function(db, done) {
var replSetGetStatus = function (db, done) {
db.admin().command({ replSetGetStatus: {} }, {}, function (err, results) {
if (err) {
return done(err);
Expand All @@ -69,65 +77,86 @@ var replSetGetStatus = function(db, done) {
});
};

var initReplSet = function(db, hostIpAndPort, done) {
console.log('initReplSet', hostIpAndPort);
var initReplSet = function (db, hostIpAndPort, done) {
console.log("initReplSet", hostIpAndPort);

db.admin().command({ replSetInitiate: {} }, {}, function (err) {
if (err) {
return done(err);
}

//We need to hack in the fix where the host is set to the hostname which isn't reachable from other hosts
replSetGetConfig(db, function(err, rsConfig) {
replSetGetConfig(db, function (err, rsConfig) {
if (err) {
return done(err);
}

console.log('initial rsConfig is', rsConfig);
console.log("initial rsConfig is", rsConfig);
rsConfig.configsvr = config.isConfigRS;
rsConfig.members[0].host = hostIpAndPort;
async.retry({times: 20, interval: 500}, function(callback) {
replSetReconfig(db, rsConfig, false, callback);
}, function(err, results) {
if (err) {
return done(err);
async.retry(
{ times: 20, interval: 500 },
function (callback) {
replSetReconfig(db, rsConfig, false, callback);
},
function (err, results) {
if (err) {
return done(err);
}

return done();
}

return done();
});
);
});
});
};

var replSetReconfig = function(db, rsConfig, force, done) {
console.log('replSetReconfig', rsConfig);
var replSetReconfig = function (db, rsConfig, force, done) {
console.log("replSetReconfig", rsConfig);

rsConfig.version++;

db.admin().command({ replSetReconfig: rsConfig, force: force }, {}, function (err) {
if (err) {
return done(err);
}
db.admin().command(
{ replSetReconfig: rsConfig, force: force },
{},
function (err) {
if (err) {
return done(err);
}

return done();
});
return done();
}
);
};

var addNewReplSetMembers = function(db, addrToAdd, addrToRemove, shouldForce, done) {
replSetGetConfig(db, function(err, rsConfig) {
var addNewReplSetMembers = function (
db,
addrToAdd,
addrToRemove,
shouldForce,
done
) {
replSetGetConfig(db, function (err, rsConfig) {
if (err) {
return done(err);
}

removeDeadMembers(rsConfig, addrToRemove);

addNewMembers(rsConfig, addrToAdd);

replSetReconfig(db, rsConfig, shouldForce, done);
console.log("🚀 ~ file: mongo.js:152 ~ shouldForce:", shouldForce);
if (!!shouldForce) {
addNewMembers(rsConfig, addrToAdd);
replSetReconfig(db, rsConfig, shouldForce, done);
} else {
addNewMembers(rsConfig, addrToAdd, {
shouldApplyReplicaSetReconfig: true,
db,
shouldForce,
done,
});
}
});
};

var addNewMembers = function(rsConfig, addrsToAdd) {
var addNewMembers = function (rsConfig, addrsToAdd, options) {
if (!addrsToAdd || !addrsToAdd.length) return;

var memberIds = [];
Expand Down Expand Up @@ -156,7 +185,10 @@ var addNewMembers = function(rsConfig, addrsToAdd) {
for (var j in rsConfig.members) {
var member = rsConfig.members[j];
if (member.host === addrToAdd) {
console.log("Host [%s] already exists in the Replicaset. Not adding...", addrToAdd);
console.log(
"Host [%s] already exists in the Replicaset. Not adding...",
addrToAdd
);
exists = true;
break;
}
Expand All @@ -168,14 +200,22 @@ var addNewMembers = function(rsConfig, addrsToAdd) {

var cfg = {
_id: newMemberId,
host: addrToAdd
host: addrToAdd,
};

rsConfig.members.push(cfg);
if (!!options) {
replSetReconfig(
options?.db,
rsConfig,
options?.shouldForce,
options.done
);
}
}
};

var removeDeadMembers = function(rsConfig, addrsToRemove) {
var removeDeadMembers = function (rsConfig, addrsToRemove) {
if (!addrsToRemove || !addrsToRemove.length) return;

for (var i in addrsToRemove) {
Expand All @@ -190,18 +230,17 @@ var removeDeadMembers = function(rsConfig, addrsToRemove) {
}
};

var isInReplSet = function(ip, done) {
getDb(ip, function(err, db) {
var isInReplSet = function (ip, done) {
getDb(ip, function (err, db) {
if (err) {
return done(err);
}

replSetGetConfig(db, function(err, rsConfig) {
replSetGetConfig(db, function (err, rsConfig) {
db.close();
if (!err && rsConfig) {
done(null, true);
}
else {
} else {
done(null, false);
}
});
Expand All @@ -213,5 +252,5 @@ module.exports = {
replSetGetStatus: replSetGetStatus,
initReplSet: initReplSet,
addNewReplSetMembers: addNewReplSetMembers,
isInReplSet: isInReplSet
isInReplSet: isInReplSet,
};
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