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Questions tagged [containers]

436 questions
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Kolla-ansible Yoga how to update with new image containers with local registry?

I am trying to update my Openstack, which was deployed using kolla-ansible, using the documentation here (https://docs.openstack.org/kolla-ansible/yoga/user/operating-kolla.html). The documentaion says this about the update: Update kolla-ansible…
Wodel
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Singularity vs. Podman for HPC workloads?

Singularity is said to work well for HPC workloads. RedHat is making an effort to make Podman more usable for HPC, e.g. it (and I presume this is with their ubi8 image) is said to work with MPI. That's about all I know. Does anyone have an opinion…
Cavalcade
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podman: mount a file system during image build

Using podman/buildah, I want to build a container image that has host file systems already mounted. I am able to do this with Singularity with sudo singularity build /tmp/lolcow.simg /tmp/lolcow.recipe if those file systems are defined in…
Cavalcade
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nginx readonly container complains about /var/lib/nginx/off

I am trying to run a nginx container in readonly rootfs but when nginx tries to start it complains about : [emerg] 10#10: open() "/var/lib/nginx/off" failed (30: Read-only file system) nginx: [emerg] open() "/var/lib/nginx/off" failed (30: Read-only…
Jose
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Shared storage between multiple instances of app container

What would be the best way to share persistent storage between multiple container instances of the same app ( for HA/performance purposes ). The app does not do heavy read/writes it just stores files uploaded from the users or generated files (…
spiroski
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LXD Routed Nic not getting internet access

I have an address of 10.1.1.24 which is my IP to the internet. I have made a profile as follows: config: user.network-config: | version: 2 ethernets: eth0: addresses: - 10.1.1.24/24 nameservers: …
Definity
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Message printing after I apt-get install or needrestart about services, containers, user sessions and VMs

I've just put Ubuntu 22.04 on my server, and when I execute apt-get install x(where x a package I want to download) or needrestart, I get this message that I haven't found an explanation for. Running kernel seems to be up-to-date. No services need…
Costas M
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Improve my actual docker backup system

I've a personal documentation/git environment running on vmware. I'm actually making manual backup on an offline media with Duplicati (that I love!) I backup the entire virtual machine folder! And i feel like I could do better by simply backupping…
Raikoug
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How to get list of azure container images which are affected after security scans?

I know how to get repositories, we can use az acr repository list --name myregistry. But, how to get repositories with tags that are having security/vulnerability issues after security scans using azure cli?
Python coder
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Can each GPU be used on Kubernetes as dedicated to a specific Pod?

I have the following environment: Pods: Pod0, Pod1 (launched as a k8s Job) GPUs: GPU0, GPU1 GPU0 is dedicated to Pod0, and GPU1 is dedicated to Pod1. There can be multiple Pod0s and Pod1s at the same time. If there are two Pod0s, only a single Pod0…
Daigo
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I have installed Jupyter-Lab inside a Docker container but I can't access the Jupyter web UI

Situation: So I have installed Jupyter-Lab inside a Docker container in a VM on my network. I've then done a commit (I know this isnt the correct way to do things, I should use a Docker file). I then go into the container bash and run jupyter-lab…
Definity
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Serve cephFS files over HTTP (or S3?)

I have a CEPH+LXD cluster configuration. And I would like to serve the files in the container over HTTP (S3,whatever doesn't matter). Is there a way to do this using the rgw service? Like can I point it to serve the cephFS directories and stuff? In…
mohamed emad
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Access entire filesystem of a container from another container

Hi ServerFault Community. I am in need of your help with a rather annoying edge case problem, which I hope can spark an universally helpful solution: I need a solution, similar to a sidecar container, but one that: doesn't need to be declared in…
stack3r
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Cannot get a shell in a nspawn container: container-shell@1.service already exists

When trying to get a shell into a container vm, I get the following error message: $ doas machinectl shell user@machine Failed to get shell PTY: Unit container-shell@1.service already exists. But this unit does not exists: $ doas systemctl…
Antoine Catton
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How to re-trigger failed flannel to calico migration?

I have a 3 node kubernetes cluster with k8s 1.22 version with flannel setup and running fine. I did run live migration steps from flannel to calico as describes in here. Cluster migrated to calico successfully. However when I tried multiple times,…
Siddharood
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