I'm trying to run Zipkin server with docker but how can I store the log files? or how can I store the volume? there is no clear documentation for that.
Docker command :
docker run -d -p 9411:9411 openzipkin/zipkin
Related
By default docker uses /var/lib/docker/volumes/ for any started container.
Is there any way to launch a new container and have it consume all the required disk on a different specified path on the host?
Basically have the root volume different.
For a specific container only, the simplest way i think would be to use docker volumes, Create docker volume and then attach the volume to the container. So the process running on the container uses up the share, so this is using the disk you would like to use.
More information on the following webpage,
https://docs.docker.com/storage/volumes/
you can define the volume path.
docker run -it --rm -v PWD$:/MyVolume ubuntu bash
This command will use the current folder where you execute the command from.
In the container you'll find your file under /MyVolume.
jens#DESKTOP:~$ docker run -it --rm -v $PWD:/MyVolume ubuntu bash
root#71969d68099e:/# cd /MyVolume/
root#71969d68099e:/MyVolume# ls
But you can define any path:
docker run -it --rm -v /home/someuser/somevolumepath:/MyVolume ubuntu bash
Almost the same is available in docker compose.
ports:
- "80:8080"
- "443:443"
volumes:
- $HOME/userhome/https_cert:/etc/nginx/certs
Jens
I have installed Airflow on docker. I want to know how to change Airflow home path from docker to my local system.
ex:
airflow home (now) : /usr/local/airflow
want to change to : mysystempath
docker run -d -p 8080:8080 -v /path/to/dags/on/your/local/machine/:/usr/local/airflow/dags puckel/docker-airflow webserver
tried above not working:
-- error message -- docker: Error response from daemon: driver failed programming external connectivity on endpoint gallant_pasteur (6f5e5a820b81847758c4e3e23a826b3bc5d4d7d67743cf55d6b01893cf427a1e): Bind for 0.0.0.0:8080 failed: port is already allocated.
It looks like you want to mount a local directory as dags folder for the airflow run within a local docker container.
Here's one example:
Given a local directory ~/Downloads/airflow_dags, you have a DAG named tutorial.py copied from here.
Then run an airflow container from image puckel/docker-airflow:latest:
docker run -d -p 8080 -v ~/Downloads/airflow_dags:/usr/local/airflow/dags --name airflow-webserver puckel/docker-airflow:latest webserver
Then you can run the following command to work with the DAG tutorial.py:
docker exec -it airflow-webserver airflow initdb
docker exec -it airflow-webserver airflow list_dags
docker exec -it airflow-webserver airflow list_tasks tutorial
I pulled the latest version of airflow image from docker hub.
apache/airflow.
And I tried to run a container base on this image.
docker run -d -p 127.0.0.1:5000:5000 apache/airflow webserver
The container is running and the status of port is fine. But I still can't access the airflow webserver from my browser.
This site can’t be reached.
127.0.0.1 refused to connect.
After few minutes, the container will stop automatically.
Is there anyone could advise?
I don't have experience with airflow, but this is how you fix this image to run:
First of all you have to overwrite the entrypoint because the existing one doesn't help a lot. From what I understand this image needs 2 steps in order to run: initdb and webserver. For this reason the existing entrypoint is not useful.
Run:
docker run -p 5000:8080 --entrypoint /bin/bash -ti apache/airflow
This will open a shell inside a running container. Also note that I mapped port 8080 inside the container.
Then inside the container run:
airflow db init
airflow webserver -p 8080
Note that in older versions of airflow, the command to initialize the database is airflow initdb, instead of airflow db init.
Open a browser and navigate to http://localhost:5000
When you close the container your work is gone thou ;)
Another thing you can do is put the 2 airflow commands in a bash script and map that script inside the container and use it as entrypoint. Something like this:
docker run -p 5000:8080 -v $(pwd)/startup.sh:/opt/airflow/startup.sh --entrypoint /opt/airflow/startup.sh -d --name airflow apache/airflow
You should make startup.sh executable before running this.
Let me know if you run into issues.
To start I built a docker container from the MariaDB docker image.
After that I loaded a database dumpfile in the running container.
[MariaDB status][1]
Everything goes fine.
When I want to run/link the Drupal image:
docker run --name drupaldocker --link mariadbdocker:mariadb -p 8089:80 -d drupal
I can reach the drupal installation page, but when I want to load the database I always have the same errors:
-host, pass or dbname is wrong.
But I'm pretty sure my credentials are right.
It seems that my drupal container can't find the mariadb image.
Docker links is a deprecated feature and should be avoided: https://docs.docker.com/engine/userguide/networking/default_network/dockerlinks/
I assume you have a container named mariadbdocker running.
If you gain bash access inside drupaldocker container, you should be able to ping mariadb alias like this:
docker run --name drupaldocker --link mariadbdocker:mariadb -p 8089:80 -it drupal /bin/bash
If ping succeeds then you probably still have credentials issue.
I am quite new to the world of docker and I am trying to set this up:
Running a solarwinds whd container and trying to mount a local volume on the host using this command:
docker run -d -p 8081:8081 --name=whdinstance -v pwd:/usr/local/webhelpdesk/bin/pgsql/var/lib/pgsql/9.2/data solarwinds/whd-embedded:latest
This starts the container and the volume is mounted but as soon as I go to localhost:8081 to login to the web helpdesk portal it asks me to select the database and then says "Connection refused" See Screenshot
can someone please help, if this might be an issue with the way I am mounting the volume?
Here exemples of how using volumes:
For use directory volume
docker run -itd -p 80:80 --name wordpress -v /path/in/your/host :/path/in/your/container wordpress
You have to put you -v and then the path of your directory in your container : the path of your shared directory on your host. When you done this you can choose your image !
So for you it should be something like
docker run -itd -p 8081:8081 --name=whdinstance -v /usr/local/webhelpdesk/bin/pgsql/var/lib/pgsql/9.2/data solarwinds/whd-embedded:latest