is somewhere source code available for own ckpool node and hosting?
Yes :
https://bitbucket.org/ckolivas/ckpool-solo/src/solobtc/Pool code:
The pool code actually run directly on the pool is all available under GPLV3 and can be used for setting up local solo mining.
Local solo mining is not recommended unless you have a high bandwidth low latency connection and optimised bitcoin daemon, however it is highly recommended as a final backup for any miner.
The pool source did I find as well, what about the dashboard mentioned in this thread?