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Repo info
    Bjorn S
    Now to figure out if replication works as I think it does, but the main issue I was having and just couldn't wrap my head around is fixed and I've definitely learned a few things about swarm and how the networks in docker function.
    Thanks again!
    Rafael Vicente Saura
    It is possible build a windows docker container from gitlab ci?
    Ievgenii Shepeliuk
    Hello, everyone
    Is there any limitations for number of stacks that can be run in swarm ?
    Is it OK to run each service in own stack ?
    Chase Pierce
    Chase Pierce
    What's a good way of allowing CircleCI to connect to a swarm you created with docker-machine? Trying to understand the "right" way, not just a way . Literally just trying to allow circle to do a rolling deploy on build :)
    Mike Holloway
    Not sure of a/the definitive ‘right’ way to accomplish this, but replied in gitter/swarmstack this morning that our team uses something like Portainer’s webhook API for builds to trigger CI/CD updates to containers and stacks.
    Chase Pierce
    Seems like the portainer stuff via swarmstack just auto-updates a given tag, no? (ie, my/service:latest)
    Isn't the more common convention in orchestration to use a specific tag (ie my/service:1.0.1) so you can have rollbacks?
    Mike Holloway
    Curious to hear what others here do. For dev CI/CD we use latest and fail forward, for production a tagged release. Not a fit for every environment, but is adequate for some.
    Chase Pierce
    For CI/CD do you guys redeploy stacks, update services, a mixture? I'm curious how people manage the individual services within stacks and how to update them individually
    Jose Marcelius Hipolito
    @all is there a way to share SSH_AUTH_SOCK from a windows host to my containers...?
    Chase Pierce
    Which ssh agent are you using?
    do the network interfacs need to be initialized in --advertise-addr and --data-path-addr?
    Is there any document which shows about starting docker container swarm via swarm plugin from jenkins ..
    has anyone deployed a kafka cluster using docker swarm?
    Jack Murphy
    Hi folks - i seem to be having a new issue with a custom defined attachable network. When attempting to connect a container to it, the docker daemon is unable to locate it. This was working correctly yesterday
    Mike Holloway
    UDP 4789 open between swarm hosts? Did you try restarting Docker daemon on each host to potentially let Docker fix up the INPUT chain firewall rules?
    Daniel Nordberg
    hey, are docker secrets really secure? more secure than just passing env? my issue is you can easily enter a container if you have access to the host and view secrets anyway
    is there any better way of managing secrets if this is the case?
    Chase Pierce
    @dnordberg The idea is that there isn't a trace of the value existing - It's a file handler, so it's literally up to the host system to provide a secret rather than the value being set on the container itself
    So yes, you can still login to a container that has a secret set and echo that value out, that's the reality with any secret system when you can read it - But the value can be encrypted at rest when not in use, and is only available when you mount it - not after, and not retrievable through layers
    Think of it more of as a secure pipe to the secret rather than the secret itself being "secured" while mounted.
    Chase Pierce
    @dnordberg Read over https://www.alexandraulsh.com/2018/06/25/docker-npmrc-security/ for an example of why secrets are better. Read the update to the document last, but it should give you an idea of what Docker is actually securing
    Ayush Singh
    does anyone know if we can achieve canary deployment using docker-swarm ? one odd way is to increase update delay but is there anything already that I am missing ?
    Ayush Singh
    does anybody know if swarm provides the routing logs ?
    Hello everyone, I have recently done some courses on docker and kubernetes. Now I want to work on some real use cases which are being used in Production environments.
    Could anyone here please tell any POC which I can pick up as a beginner to get a hands-on on both of them.


    I'm trying to containerize IIS running on Windows 2008R2 running on vSphere 6.7. My steps are as follows:

    • convert .vmdk to .vhdx
    • run Image2Docker 1.8.5
    • ConvertTo-Dockerfile -ImagePath I:\cloneVMIIS_3.vhdx -OutputPath I:\container2\ -MountPath C:\Image\ -Artifact IIS -ArtifactParam 'Default Web Site/Asghar' -Force –Verbose
    • in container2 I get the followings:
            - config folder
            - wwwroot folder
            - IIS.json file
            - no DockerFile due to the following error:
      Generate_IIS : You cannot call a method on a null-valued expression.
      At C:\Program Files\WindowsPowerShell\Modules\Image2Docker\1.8.5\Functions\Private\GenerateDockerfile.ps1:37 char:23
    • ... ockerfile = & "Generate_$Artifact" -MountPath $MountPath -ManifestPat ...
    • ~~~~~~~~~~~~~
      • CategoryInfo : InvalidOperation: (:) [Generate_IIS], RuntimeException
      • FullyQualifiedErrorId : InvokeMethodOnNull,Generate_IIS
        I’d be grateful if you could help me resolve this problem.
        Many thanks,
    Hi guys, it's been a while since I posted this in StackOverflow, and it's related with Docker Swarm visualizer and nginx config. It should be quite easy, but I'm not expert enough, perhaps one of you could help? Thanks https://stackoverflow.com/questions/57856434/nginx-password-protect-docker-visualizer

    How to convert a java standlone app to web application or access via internet?

    I come across several beautiful java standalone application..example DocFetcher...However there is no web interface available.

    Is there a way to make it as web application using any tool or third party plugin or server?
    Is there a way to launch in the server and access as jnlp from anywhere?
    What would be the best and easiest way to convert a standalone jar or desktop java application to web server...

    Not going to be a request and response..Instead wanted to do the same thing which we can do in the standlone......

    Please kindly advise....
    i f nothing is possible, is it possible via docker
    looking for a solution via docker if possible

    Dean Galvin
    Would love some help if someone knows what my issue is, im getting the error: "no suitable node (unsupported platform on 1 node)"
    The image architecture is: "Architecture": "amd64"
    The node OS/architecture is:
    Operating System: Arch Linux
    Architecture: x86_64
    I was under the impression that those should normalize & be equal?
    @FreekingDean not encountered this myself, when do you get this? When you deploy something or just adding the node to the swarm?
    Good morning , I have a question :
    I´m deploy with docker service and have same as this $REGISTRY_DOMAIN:$REGISTRY_PORT/${IMAGE} \
    --path.procfs /host/proc \
    --path.sysfs /host/sys \
    --path.rootfs /host \
    --collector.filesystem.ignored-mount-points "^/(sys|proc|dev|etc)($|/)" \
    --collector.textfile.directory /etc/node-exporter/
    this are commands to prometheus service
    So, i want deploy with docker stack
    How apply this commands in a ymal file ?
    image: prom/prometheus:v2.0.0
      - prometheus_config_data:/etc/prometheus/
      - prometheus_data:/prometheus
      - '--config.file=/etc/prometheus/prometheus.yml'
      - '--storage.tsdb.path=/prometheus'
      - '--web.console.libraries=/usr/share/prometheus/console_libraries'
      - '--web.console.templates=/usr/share/prometheus/consoles'
    I haven't well search
    @CharcoGreen I take it those commands are arugments used when starting Prometheus i.e. prometheus --config1=my_config1 --config2=my_config2.
    If you could try using the > anchor in YAML. This will traspose the list of commands into a single line.
    command: >
    just this work

    Service prometheus

      image: registry.integracio.swarmme:5005/prometheus:2.11
        - '--config.file=/etc/prometheus/prometheus.yml'
        - '--storage.tsdb.retention=31d'
        - '--web.console.libraries=/etc/prometheus/console_libraries'
        - '--web.console.templates=/etc/prometheus/consoles'
    We can user var in yaml files to deploy¿
    Zhiyu(Drew) Li
    Hello All, we are using Swarm to deploy Jupyter single-user container. We have worker nodes with different spec. (big nodes VS small nodes). We found swarm tries to distribute notebook containers evenly on them. But once it hits the resource limit on one small node, the whole cluster stops deploying new containers (services created but no container starts) even though big node still have a lot of unused resources. Any help would be appreciated. Thanks