docker is using the v1 registry api when it should use v2
You need to secure the registry before you can access it remotely, or explicitly allow all your Docker daemons to access insecure registries. To secure the registry the easiest choice is to buy an SSL certificate for your server, but you can also self-sign the certificate and distribute to clients....
Docker-compose and pdb
python,docker,pdb,docker-compose
Try running your web container with the --service-ports option: docker-compose run --service-ports web
Automatic building and installing Packages from AUR for Arch Linux inside Docker with yaourt and >makepkg-4.2.0
If found a Solution that let yaourt only download the Info how to build the Package, then invoke makepkg itself, both with an non-root User and afterwards install the build Package with the root User and pacman. The Portion of the Dockerfile looks like this RUN mkdir -p /tmp/Package/ &&...
What is the '.save_docker/' folder? Can I delete it?
save_docker doesn't seem used in docker or boot2docker or compose or machine. But even before trying to remove it, check if you have: stopped containers that you could remove docker rm -v $(docker ps -a -q -f status=exited) dangling images docker rmi $(docker images --filter "dangling=true" -q --no-trunc) For that,...
Docker Compose with one Terminating Container
docker,exit,exit-code,docker-compose,fig
My workaround for now is to keep the pre-loading container running by adding tail -f /dev/null to the end of the entrypoint script. This keeps the process running, while nothing actual happens.
Use of container docker as a proxy for CF app to get public IP
No you can not do this. The DEA's (part of Cloud Foundry that runs your app) is firewalled off from talking to internal IP's of other DEA's. In Bluemix we do not charge for network bandwidth.
How to tag Docker images with a Git tag in Jenkins?
git,jenkins,docker,jenkins-plugins
After taking another look at the problem with a clearer head, I found a simple solution to this problem in scripting the creation a temporary properties file with my git tag and using Envinject's "Inject environment variables" build step to read that file. My final configuration looked somewhat like this:...
How to properly set VOLUME and CMD instructions in Postgres Dockerfile?
I'm not sure about the first problem. It may be that Postgres doesn't like running on top of the UFS. The second problem is just that a container will exit when its main process ends. So the command "service postgres start" runs, starts Postgres in the background then immediately exits...
SocketError: No such file or directory - connect(2) for /var/run/docker.sock
ruby-on-rails,docker,boot2docker
Since you are using Kitematic, the socket file hasn't been created yet. You nee to create it manually. You can use the command: eval "$(docker-machine env dev)" and then run your ruby application. Refer: https://github.com/swipely/docker-api https://github.com/kitematic/kitematic/issues/517...
How to pull private docker image from docker to new machine
You need to run docker login before you can access private repositories.
PyCharm add remote Python interpreter inside the Docker
python,docker,pycharm,remote-debugging,boot2docker
Okay so to answer your question(s): In PyCharm, I can set a remote python interpreter via SSH but I'm not sure how to do it for dockers that can only be accessed via Boot2Docker? You need: To ensure that you have SSH running in your container There are many base...
AWS EC2 Container Service / Elastic Beanstalk Docker Container Port udp binding
amazon-web-services,amazon-ec2,docker,elastic-beanstalk,ec2-container-service
UDP support has been missing still from the GA release of the Amazon EC2 Container Service, see Ports are assumed to be TCP (issue #2) of the Amazon ECS Container Agent. Luckily this surprising gap has already been addressed and the new ECS agent version is pending release - I...
docker with btrfs ubuntu
Adrian Mouat recomandation was the answer to my question. Docker started using btrfs after I started like this : /usr/bin/docker -d -g /var/lib/docker2 Thanks you very much....
Simple docker deployment tactics
I do both. My Dockerfile checks out the code for the application from Git. During development I mount a volume over the top of this folder with the version of the code I'm working on. When I'm ready to deploy to production, I just check into Git and re-build the...
Error when running jekyll docker container with boot2docker on Mac
It's working fine on my machine: $ docker run --rm -v "$PWD:/src" -p 4000:4000 grahamc/jekyll serve -H 0.0.0.0 Configuration file: /src/_config.yml Source: /src Destination: /src/_site Generating... Build Warning: Layout 'nil' requested in atom.xml does not exist. Build Warning: Layout 'none' requested in feed.xml does not exist. done. Auto-regeneration: enabled for...
Commit data in a mysql container
mysql,linux,database,docker,virtualization
The official mysql image stores data in a volume. Normally this is desired so that your data can persist beyond the life span of your container, but data volumes bypass the Union File System and are not committed to the image. You can accomplish what you're trying to do by...
Access binaries inside docker
It doesn't seem to be configurable at the moment based on this open issue. However, you could always fork the project and modify the start script to use your own custom docker image. If so, make sure you make it: FROM meteorhacks/meteord:base ...
Kubernetes minion not completely connecting
docker,coreos,kubernetes,etcd,flannel
Currently, I have to manually register the minion prior to spinning up the minion instance. This is because there is an open issue as of right now not allowing the minion to self-register in certain cases. UPDATE Now I'm using kube-register to register each minion/node on start of the kubelet...
Docker: how to set up file ownership in a data-only container?
docker,dockerfile,docker-compose
Use the same image you use for running the application to make your data container. For example, if you want to make a postgresql database, use the postgres image for your data container: $ docker run --name dc postgres echo "Data Container" This command created the data container and exited...
Docker: how to send a signal from one running container to another one?
To accomplish this you'd want to mount Docker socket from host machine into the container you'd like to be sending signals from. See, for instance, this post for explanation and details.
docker run python from container
How do I use the python interpreter from the container without having to type docker exec everytime? What about opening a shell in that container instead? docker exec -it <your container id> /bin/bash -l and then from there use python. Also, how do I access the project code in...
Docker: understanding ENTRYPOINT and CMD instructions
1) ENTRYPOINT and CMD are executed in the order they appear in the Dockerfile, regardless of the volumes mount 2) if you have an ENTRYPOINT launching a verb, you can pass a parameter 3) yes for docker run but some examples might clarify this, and docker exec just gets you...
Adding nodes on the fly with Docker Swarm
Not you can't add on the fly nodes with list of IPs without restart manually your swarm and adding new hosts. But if you use swarm with service discovery you can do it. You can found here the needed reference to implement docker-swarm with service discovery and how join nodes...
Why are images created and why doesn't Docker clean them up?
Every RUN line in a Dockerfile is essentially equivalent to docker runing the previous line's image. By default docker keeps all these intermediate images to help with caching, this speeds up subsequent builds. You can ask them to be removed when building by specifying the --rm or --force-rm flags.
When should you create more than one docker container image instance with Kubernetes Replication Controller?
docker,google-compute-engine,kubernetes
I think you laid out the issues pretty well. The two kinds of scaling you described are called "vertical scaling" (increasing memory or CPU of a single instance) and "horizontal scaling" (increasing number of instances). On availability: As you observed, you can achieve pretty good availability even with a single...
is anyway to get all container's name?
or docker stats $(docker ps | awk '{if(NR>1) print $NF}')
Accessing files inside Docker container
The best way would be to use VOLUME and mount your source codes to the container. That way, your IDE will have access to code in the host and all the changes you make will also be reflected in the containers.
Strategy to persist the node's data for dynamic Elasticsearch clusters
elasticsearch,docker,mesos,marathon
Elasticsearch and NFS are not the best of pals ;-). You don't want to run your cluster on NFS, it's much too slow and Elasticsearch works better when the speed of the storage is better. If you introduce the network in this equation you'll get into trouble. I have no...
Saving docker container image
Data in a Docker volume (such as /var/jenkins_home) is not preserved as part of the docker commit operation. This is intentional -- the idea is that you are persisting you data via some other mechanism, such as a host volume (-v /host/directory:/var/jenkins_home) or through the use of a data container...
Where does kubernete's kubelet create service environment variables?
node.js,docker,service-discovery,kubernetes
The environment variables for a given service are put in every container that is started after the service was created. For example, if you create a pod foo and then later a service bar, the pod's containers won't have any environment variables for bar. If you instead create service bar...
Is docker must run under linux 64bits?
Now docker only supports amd64 architecture. According to this post, docker developers will eventually provide support for other architectures, https://github.com/docker/docker/issues/136....
How to mount volume for docker container via yaml manifest?
docker,google-cloud-platform,google-container-engine
Try replacing hostDir with hostPath as mentioned in v1beta3-conversion-tips-from-v1beta12. Try replacing volumes: - name: string source: # Either emptyDir for an empty directory # emptyDir: {} # Or hostDir for a pre-existing directory on the host hostDir: path: /home with volumes: - name: string hostPath: path: /home at the bottom...
Why is /etc/hosts file empty in my docker container?
I don't have an answer but I have a workaround: use FROM busybox ... and everything works ok....
docker networking - Could not discover any bindable network interfaces
linux,osx,networking,docker,boot2docker
I got this working by using the --net host flag which essentially says that i am going to use to your host's networking and in this case ip addr displays the host's machine networking eth0, eth1 details. docker run -it --net host <image name> /bin/bash ...
boot2docker resulting in “Cannot connect to the Docker daemon. Is 'docker -d' running on this host?”
Run the full docker version command, and you should see something like this: $ docker version Client version: 1.6.2 Client API version: 1.18 Go version (client): go1.4.2 Git commit (client): 7c8fca2 OS/Arch (client): darwin/amd64 Server version: 1.6.2 Server API version: 1.18 Go version (server): go1.4.2 Git commit (server): 7c8fca2 OS/Arch...
How to Setup a Docker Tomcat Container on Mac OS X
Information: Because Docker only runs on Linux you will need to install some kind of virtual instance on your local machine. An easy and popular way to do that is to install Boot2docker and VirtualBox. VirtualBox is a dependency of Boot2docker. You can download, setup and install the latest versions...
Not able to clone private repo using dockerfile
Look at my example, i have a private ssh key in the directory where i dockerize app(ssh_keys/id_rsa), and public key i have already upload to the private repo: FROM ubuntu:14.04 MAINTAINER Alok Agarwal "alok.alok.com" RUN apt-get update #Install git RUN apt-get install -y git RUN /bin/bash -l -c "mkdir /root/.ssh"...
Disable ip v6 in docker container
Unfortunately there isn't: --ipv6 is a daemon-wide flag that cannot be overridden on a per-container basis.
Dockerfile build - possible to ignore error?
Sure. Docker is just responding to the error codes returned by the RUN shell scripts in the Dockerfile. If your Dockerfile has something like: RUN make You could replace that with: RUN make; exit 0 This will always return a 0 (success) exit code. The disadvantage here is that your...
How to customize the configuration file of the official PostgreSQL docker image?
The postgres:9.4 image you've inherited from declares a volume at /var/lib/postgresql/data. This essentially means you can can't copy any files to that path in your image; the changes will be discarded. You have a few choices: You could just add your own configuration file as a volume at run-time with...
ERROR: (gcloud.preview) Invalid choice: 'docker'. Did you mean 'dm-v2'?
docker,google-cloud-platform,gcloud
From the release notes 0.9.65 (2015/06/17): gcloud preview docker moved to gcloud docker. The command was moved out of preview in the latest version of gcloud. You can run it with: gcloud docker push gcr.io/<my-project-xxx>/<my-image-yyy> ...
What's the best way to share files from Windows to Boot2docker VM
Boot2Docker is a small Linux VM running on VirtualBox. So before you can use your files (from Windows) in Docker (which is running in this VM), you must first share your code with the Boot2Docker VM itself. To do so, you mount your Windows folder to the VM: C:/Program Files/Oracle/VirtualBox/VBoxManage...
Run Boot2Docker from bash
Replace your boot2docker start with boot2docker start && $(boot2docker shellinit) and you are good to go. $(boot2docker shellinit) will export all the Environment variables needed.
docker-compose error - unable to read file
The docker build executes in a container separate from your host. The container has its own filesystem and is unaware of files on the host system. You may copy files to the container by using COPY /path/on/host /path/on/container in the Dockerfile Currently pip needs files, but they have not been...
ElasticBeanstalk with Docker: how to use create-environment from aws cli
docker,elastic-beanstalk,aws-cli
I've not given this a shot but I assume there's a --solution-stack-name option where you can pass values such as 64bit Amazon Linux 2015.03 v1.4.1 running Docker 1.6.0. You can alternatively specify the solution stack on json file and specify the json file via --option-settings file://your_options.json where you can include...
“Dockerized” apps frequently are built on top of OS containers. Why doesn't this defeat the purpose?
A Docker image (which will most likely contain the base system from a Linux distribution), is read only and is augmented with several layers that are enabled as you write to a location. So you can share the base image and have "add-ons" if you will. This is called a...
Configure Dockerfile to set AWS configurations
node.js,amazon-web-services,docker
I think the answers regarding the environment variables are good solutions. To offer an alternative, or if you use a file for aws authentication, you could use docker volumes to mount these. Mount a Host Directory as a Data Volume In addition to creating a volume using the -v flag...
Start Docker Containers In Specific Order After Reboot
If you expose port 80 on all your containers with webapplications you could link to them to your Nginx container. Here is a small sample docker-compose.yml: app: build: app/ expose: - "80" api: build: api/ expose: - "80" webserver: image: nginx ports: - "80:80" volumes: - default.conf:/etc/nginx/conf.d/default.conf links: - app...
Passing Elasticsearch and Kibana config file to docker containers
elasticsearch,docker,kibana,kibana-4
Can I do that with this image itself? yes, just use Docker volumes to pass in your own config files Let say you have the following files on your docker host: /home/liv2hak/elasticsearch.yml /home/liv2hak/kibana.yml you can then start your container with: docker run -d --name kibana -p 5601:5601 -p 9200:9200...
My docker container was created with no name and no tag
Found it. I can supply a name with docker build -t NAME ..
How to edit file after I shell to a docker container?
As in the comments, there's no default editor set - strange - $EDITOR env variable is empty. You can login into container with docker exec -it <container> bash and run: apt-get update apt-get install vim or use the following Dockerfile: FROM confluent/postgres-bw:0.1 RUN ["apt-get", "update"] RUN ["apt-get", "install", "-y"] ...
What tool can manage Docker container to start in order?
The simplest approach that works would be to simply add a retry policy to your container and make sure that if it cannot access the required resource on startup it exits: docker run -d mysql docker run -d --restart always --link mysql:mysql nginx start_or_die.sh The start_or_die.sh script here would first...
Ensure nginx master process stays running
You need to append daemon off; to your nginx.conf configuration instructing nginx to run in the foreground. Then modify your supervisor stanza to be: [program:nginx] command=nginx autorestart=true It will still spawn master/worker processes/subprocesses and can be used this way in production setups just fine. In this case it's supervisor that...
docker set iptables options in docker-compose.yml
The --iptables option only applies to the Docker daemon; it's not a per-container option. The corollary is that this isn't something you could ever set from your docker-compose.yaml file. You would need to modify the options passed to the Docker daemon; on Red Hat systems and derivatives this means you...
docker run local script without host volumes
database,shell,docker,docker-compose
The solutions I have found are: docker run tomdavidson/initdb bash -c "`cat initdb.sh`" and Set an ENV VAR equal to your script and set up your Docker image to run the script (of course one can ADD/COPY and use host volumes but that is not this question), for example: docker...
How to find the name of intermediate Docker images?
These images are the intermediate layers that make up other images. Each instruction in a Dockerfile results in a new image being created. A lot of Dockerfile instructions only result in changes to the "metadata" rather than the filesystem (e.g EXPOSE, MAINTAINER) which accounts for images with the same size....
Does Google Container Registry undergo issues?
docker,google-cloud-platform,google-container-engine,google-container-registry
The latest container vm image doesn't support the v1beta2 kubernetes API. You will need to update your manifest to use v1beta3 or v1 (with the corresponding yaml changes). The latest version of the container vm documentation shows a yaml example using the v1 API. ...
How to run several separate Wordpress websites using Docker containers
If you are using official Wordpress image, you can use the same MySQL container. Just provide different database for each Wordpress container. You can define database for Wordpress container with environment variables, for example: docker run --name wordpress1 --link some-mysql:mysql -p 8080:80 -e WORDPRESS_DB_NAME=wordpress1 -d wordpress docker run --name wordpress2...
autoexpect on docker centos6.6 container cannot work
centos,docker,expect,autoexpect
Seems like autoexpect requires the SHELL env var be set but your current running shell (not bash?) does not set it. So try SHELL=bash autoexpect.
How can I debug my docker container with phpStorm
php,docker,phpstorm,xdebug,boot2docker
Your Docker container can't see your PHP Storm IDE with the IP 127.0.0.1, typically the host is 172.17.42.1 from within a container. Also remote_connect_back won't work well probably. Try setting it up like this: xdebug.remote_host=172.17.42.1 xdebug.remote_connect_back=Off You might need to look for a proper way to know the host's IP...
Docker dm_task_run failed error
As seen in issue 3721, this generally is a disk space issue. The problem is that docker rmi doesn't always work in that case: Getting this in v1.2 on CentOS 6.5 if a disk fills up before the image finishes pulling. Unable to rmi the incomplete image. One "nuclear" option:...
Any suggestion for running Aerospike on Kubernetes on CoreOS on GCE?
docker,google-compute-engine,kubernetes,aerospike
An alternative to specifying all mesh seed IP addresses is to use the asinfo tip command. Please see: http://www.aerospike.com/docs/reference/info/#tip the tip command asinfo -v 'tip:host=172.16.121.138;port=3002' The above command could be added to a script or orchestration tool with correct ips. You may also find addtional info on the aerospike Forum:...
Docker Wordpress Container Exits after ~30 seconds
I have found the solution. Docker offers two networking modes: bridge, and host. The bridge networking mode is default, and when using this mode, MySQL must be listening for connections on the Docker host IP address (172.17.42.1). In other words, the bind-address in the MySQL config file must be set...
How can I create a docker image from the current system?
google-app-engine,docker,boot2docker
You can SSH into the Container, make changes and then you can commit the container, which will save your changes to an image. You can now push this image to registry. Unless you are using a data container, all your changes are saved.
Hide/obfuscate environmental parameters in docker
you say "Alternatively, is it possible to pass sensitive parameters by reference to a file?" , extract from the doc http://docs.docker.com/reference/commandline/cli/#run --env-file=[] Read in a file of environment variables
Golang failes to change the name of imported module
The Go compiler doesn't replace or rewrite anything, the code is just wrong. The github.com/rcrowley/go-metrics/influxdb package was written with some other influxdb client code that no longer exists. (Looks like there are a couple github issues open about this already) If you look at the current influxdb/client package, you'll see...
How do I turn sendfile off in a docker instance
linux,nginx,configuration,docker,sendfile
Just inject your own config file as a volume. Let say you have a conf file in /tmp, then you can run the container with : docker run -d -P -v /tmp/my.conf:/etc/nginx/nginx.conf -v /Users/user/site:/usr/share/nginx/html --name mysite nginx ...
Where is my Docker Wordpress Website Storing Data?
When you run wordpress container for the first time, the initialization script downloads the wordpress codebase to /var/www/html and then start the web server. Since everything inside a container is ephemeral, the codebase with any changes you make will be lost when you re-run the container (unless you just stop/start...
Unable to get docker containers running disque to establish a cluster
The problem should be due to the fact that Docker uses port forwarding, which is not compatible with the way Disque works currently. However you can disable port forwarding in Docker using a 1:1 mapping, with something like this: $ docker run -d -p 7711:7711 ... When this will be...
How to see a linked container as localhost?
There seems to be some confusion here. It looks like you are trying to log into the web container and access the api container using the localhost address? This isn't going to work. The best solution is just to use the link you've declared; within the web container you should...
What does docker use for (image) versioning?
Docker doesn't internally use git today for any kind of resource versioning. It does however: Rely on hashing to uniquely identify the file system layers: this is what can make it resemble git to the user Take initial inspiration in the notion of commit, pushes and pulls One thing that...
Use Dokku Environment variables in DockerFile
docker,environment-variables,dockerfile,dokku
I've never used Dokku, but you will only be able to use those variables at run-time in a launched container. Docker intentionally doesn't allow you to pass in variables to docker build, so that builds are reproducible across environments. I suspect you can just write a script that configures the...
Access other containers of a pod in Kubernetes
All the containers in a pod are bound to the same network namespace. This means that (a) they all have the same ip address and (b) that localhost is the same across all the containers. In other words, if you have Apache running in one container in a pod and...
Docker container returns “unknown” for “uname -p” command
I don't know the exact reason why uname -p fail with the java:7 docker image but it seems to be due to the docker debian image. With the ubuntu docker image, everything is fine. $ docker run debian uname -p unknown $ docker run ubuntu uname -p x86_64 If you...
Docker, no IPAddress in docker inspect
Looks like you need to run boot2docker ip and use that
docker-machine without TLS verification
docker,boot2docker,docker-machine
After some research about it and interchange with other user over freenode chat room, I found that in current version this option is not available, you can't set env var to disable TLS verification on creation process with docker-machine. Also some people recommend for now use solution presented on deis/issues/2230.
Docker inspect with unix:///var/run/docker.sock (in Java or Scala)
It's not possible to use pure java as there is no framework support for Unix sockets. However, you can use some sort of jni-library for this. Like this one.
Not able to access Kibana running in a Docker container on port 5601
elasticsearch,docker,dockerfile,kibana-4
The parent Dockerfile devdb/kibana is using a script to start kibana and elasticsearch when the docker container is started. See CMD ["/sbin/my_init"] and the script itself. When in your own Dockerfile you use the CMD instruction, you override the one from the parents Dockerfiles. Since your CMD only starts gunicorn,...
Why does single-user with heredocs and multiline queries throw syntax errors for postgres+docker?
When using the postgres binary to submit SQL commands (as opposed to psql), the end-of-line is the end of the command and the semi-colon has no meaning. Per documentation: Normally, the single-user mode server treats newline as the command entry terminator; there is no intelligence about semicolons, as there is...
Is there a way to tell kubernetes to update your containers?
Found where in the Kubernetes docs they mention updates: https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/replication-controller.md#rolling-updates. Wish it was more automated, but it works. EDIT 1 For automating this, I've found https://www.npmjs.com/package/node-kubernetes-client which since I already automate the rest of my build and deployment with a node process, this will work really well....
Difficulty accessing Docker's API
I figured it must be a firewall problem but it took a while longer before I realised it was the firewall built into Linux. To make 2375 accessable: Use one of the following depending on your distro sudo firewall-cmd --zone=public --add-port=2375/tcp --permanent sudo firewall-cmd --reload OR sudo iptables -I INPUT...
Best practice for docker webserver, muliple layers or single layer?
Normally we think Container as process. One process does one job. So recommend to simplify the container if you can. Set containers for each service...
Vagrant + puppet + docker
I would skip Vagrant step. Docker containers are enough in most cases. Ad. 2. Of course you can create separate containers for each instance and app (e.g. one for server app, one for database and one for some queue). You manage dependencies between containers using link command (read here). To...
Docker container http requests limit
So, it wasn't a problem with either Docker or Elastic. Just to recap, the same script throwning PUT requests at a Elasticsearch setup locally worked, but when throwning at a container with Elasticsearch failed after a few thousand documents (20k). To note that the overal number of documents was roughtly...
Dockerfile 'RUN git clone' removes intermediate container
git,docker,boot2docker,git-clone
The color you see in red, is not caused by error. It's because git clone doesn't use STDOUT, we can verity it by following command: $ git clone --progress --verbose https://github.com/zsh-users/antigen > /dev/null Cloning into 'antigen'... POST git-upload-pack (255 bytes) remote: Counting objects: 1291, done. remote: Total 1291 (delta 0),...
Mount Github link as docker volume
You cannot mount such remote resources that are on the Internet. What you can do is to have a shell script in your docker image which when executed will download those resources. And make docker run that script when the container is run. Dockerfile FROM ubuntu:latest COPY download-from-github.sh / #...
Running quick programs inside a docker container
This sounds like a good candidate for a microservice, a long-lived server (implemented in your language of choice) listening on a port for resizing requests that uses graphicsmagick under the hood. Pros: Implementation details of the resizer are kept inside the container. Scalability - you can spin up more containers...
oh-my-zsh installation returns non zero code
Build failing because install.sh return non zero code, when you execute script manually you are ignoring return code, but docker failing build. Usually non-zero return code indicate error, but if in this case everything ok you could ignore this error: RUN wget https://github.com/robbyrussell/oh-my-zsh/raw/master/tools/install.sh -O - | zsh || true ...
Installing Python 3 Docker Ubuntu error command 'x86_64-linux-gnu-gcc
python,python-3.x,amazon-web-services,docker
You should install python3-pip in your Dockerfile and then run pip3 install -r requirements.txt
How to inspect a docker image in docker hub?
As per the docker hub documentation - Docker itself provides access to Docker Hub services via the docker search, pull, login, and push commands. It does not look like you can do a docker inspect without pulling one image...