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Questions tagged [volumes]

322 questions
11
votes
3 answers

How to clean up Docker ZFS legacy shares

Summary Given that: The storage driver docker users is ZFS; Only docker creates legacy datasets; Bash: $ docker ps -a | wc -l 16 $ docker volume ls | wc -l 12 $ zfs list | grep legacy | wc -l 157 16 containers (both running and stopped). 12…
Redsandro
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10
votes
2 answers

Conditionally mount volumes in docker-compose for several conditions

I use docker and docker compose to package scientific tools into easily/universally executable modules. One example is a docker that packages a rather complicated python library into a container that runs a jupyter notebook server; the idea is that…
nben
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10
votes
2 answers

Move docker bind-mount to volume

Actually, I run my containers like this, for example : docker run -v /nexus-data:/nexus-data sonatype/nexus3 ^ After reading the documentation, I discover volumes that are completely managed by docker. For some reasons, I want to…
fmdaboville
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9
votes
3 answers

Re-attach volume claim on deployment update

I'm using persistent volume claim to store data in container: kind: PersistentVolumeClaim apiVersion: v1 metadata: name: test-pvc labels: type: amazonEBS spec: accessModes: - ReadWriteOnce resources: requests: storage:…
Kirill
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9
votes
2 answers

Docker Compose: Which syntax produces a bind mount, which produces a volume

In the Docker Compose documentation, here, you have the following example related to the volumes section of docker-compose.yml files: volumes: # (1) Just specify a path and let the Engine create a volume - /var/lib/mysql # (2) Specify an…
jeromerg
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8
votes
4 answers

Kubernetes on docker for windows, persistent volume with hostPath gives Operation not permitted

I am trying to connect a folder in windows to a container folder. This is for a .NET app that needs to read files in a folder. In a normal docker container, with docker-compose, the app works without problems, but since this is only one of several…
Tryggen
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7
votes
1 answer

Is read/write performance better with docker volumes on windows (inside of a docker container only) or a mounted / shared volume with host OS?

I have read that there is a significant hit to performance when mounting shared volumes on windows. How does this compared to only having say the postgres DB inside of a docker volume (not shared with host OS) or the rate of reading/writing from/to…
AustEcon
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7
votes
1 answer

dockerized postgresql with volumes

i am relatively new to docker. I'd like to set up a postgres database but I wonder how to make sure that the data isn't being lost if I recreated the container. Then I stumbled over named volumes (not bind volumes) and how to use them. But... in a…
Chris
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6
votes
0 answers

Docker-Compose volume mount issue in GitHub Actions checked out Repository

I have the following logic in my Github Actions: Checkout a different repository Inside that repository run docker command Checkout my current repository of the workflow Run code on the running docker instance However, when I do this, I see that a…
Hayk
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6
votes
2 answers

Docker named volumes between multiple containers

I want to deploy some services into my server and all of them will use nginx as web server, every project has it own .conf file and I want to share all of then with nginx container. I tried to use named volumes but when it's used by more than one…
Paulo Mesquita
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6
votes
2 answers

docker-compose : absolute path for shared volumes in version 3

To replace the volumes_from: directive from version 2 (for helpyio), I tried this, but something went wrong. version: "3" services: frontend: ... volumes: - myVolume:/var/www:ro backend: ... volumes: -…
esprit libre
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6
votes
2 answers

Docker for Windows : volumes are empty

I updated from Windows 7 to Windows 10 few weeks ago : I was using Docker Toolbox/Virtual Box to work with Docker and I read Docker for Windows was recommended (newest application) but it is a pain for me to make it work as it used to with…
Marien
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6
votes
2 answers

Persistent /etc/passwd on a docker container

I have create a docker image that allows users to connect on it with SSH. For security reason, I'd like to users can change their password. I only use docker named volumes, so I can't bind /etc/passwd and I don't want to mount all /etc Any ideas?…
lama02
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6
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2 answers

docker run... enter container... then every command gets "ReferenceError: is not defined"

This has happened with multiple command variations. Basically... First I run the container: docker run -it --publish 8080:8080 --name app_in_docker node:latest Then I have this response in the next line after a couple seconds: > This make it appear…
Kevin Danikowski
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5
votes
3 answers

Why should I use Kubernetes Persistent Volumes instead of Volumes

To use storage inside Kubernetes PODs I can use volumes and persistent volumes. While the volumes like emptyDir are ephemeral, I could use hostPath and many other cloud based volume plugins which would provide a persistent solution in volumes…
Aditya Bhuyan
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