Error running kubelet, node not ready

I am running kuberentes using docker and I am able to run a pod, it goes into running stage after some time it goes to pending kubelet logs show this: E1027 02:52:53.222558 21724 kubelet.go:2246] Error updating node status, will retry: node “127.0.0.1” cannot be updated: the object has been modified; please apply your changes to […]

Build a docker image from vagrant

I would like to build a Docker image from Vagrant container. The Vagrant environment is functioning without any problems. I created a Dockerfile: touch Dockerfile I created myapp directory within Vagrant machine directory (I am not sure if I should do this or not): mkdir myapp I added these lines to Vagrantfile: config.vm.provision “docker” do […]

Not able to connect to AS in Docker container

I have created a docker image from a dockerfile, started it on a local VM (boot2docker), and verified from application server logs that it is running and deployed ok. However, I am not able to connect to the AS from my Windows client. The end of my dockerfile: RUN echo “JAVA_OPTS=\”\$JAVA_OPTS -Djboss.bind.address=0.0.0.0 -Djboss.bind.address.management=0.0.0.0\”” >> $JBOSS_HOME/bin/standalone.conf […]

Docker service not starting after installation on Ubuntu 15.10

I’m having trouble getting docker up and running on Ubuntu 15.10 as per the instructions here. After doing a sudo apt-get install docker-engine I get the following: Setting up docker-engine (1.10.2-0~wily) … Job for docker.service failed because the control process exited with error code. See “systemctl status docker.service” and “journalctl -xe” for details. invoke-rc.d: initscript […]

Is there a way to use Windows with GUI capability on Dockers

I’m thinking is there a way to leverage on Dockers concept for my windows base Desktop application. I need to run GUI test, performance test, workflow test etc.. for each build. What I currently do is use Hyper-V with pre setup different OS images. Is there a easy way to achieve same thing using docker […]

Installing novadocker for openstack

I have a problem in setting up novadocker, to set up a Docker compute node with Openstack. Openstack version is Horizon. I have followed this tutorial https://wiki.openstack.org/wiki/Docker#Installing_Docker_for_OpenStack, but when I change the node-compute.conf file accordingly with what is written in the tutorial, I get this error in the log file when I try to start […]

How to quickly update a running docker-compose container

How do you quickly update one running service using docker-compose. I find myself often running docker-compose stop SERVICE, docker-compose build SERVICE and docker-compose up -d SERVICE. Is there an easier way, preferably with little down time.

docker of solr and nutch working together?

I’m trying to activate nutch and solr as dockers out of the box to consume that in REST. Tried same docker – started it with docker run –name nutch_solr -d -p 8899:8899 -p 8983:8983 -t momer/docker-solr-nutch:4.6.1 can’t surf to ..:8983, or …:8899 Tried different dockers – nutch and solr started it with: docker run –name […]

Backup running postgres docker container

I am trying to backup a running postgres container, without luck. What I have so far is a data only container, with – /var/lib/postgresql/data volume, and a main database container running official postgres images, with –volumes-from data only container. I tried backing up /data directory of the running postgres container, and then restoring it, however […]

Flask web app, Node.js (queue) worker. Can't make docker work

I have an app with the following services: web/ – holds and runs a python 3 flask web server on port 5000. Uses sqlite3. worker/ – has an index.js file which is a worker for a queue. the web server interacts with this queue using a json API over port 9730. The worker uses redis […]

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