Containers and Kubernetes

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  • enrique ortiz
    kubernetes and database public IP1
    Topic posted July 14, 2019 by enrique ortizRed Ribbon: 250+ Points 
    Title:
    kubernetes and database public IP
    Summary:
    database
    Content:

    hi all

    we have created an kubernetes cluster , so it created an vcn and subnets in the kubernetes compartment 

    we have some databases in another vcn so the ranges of ips are the same ( 10.0.0.0/16) 

    we need to connect the pods with database using jdbc and used the public ip of the databases ( 130.X ) ,so 

    - is there a way to connect two vcn ?

    - its better to use the private ip  ?, whats the difference if using a private IP ?

    thanks 

  • Patrick Dizon
    SSH to worker nodes1
    Topic posted July 9, 2019 by Patrick DizonGreen Ribbon: 100+ Points, tagged Kubernetes 
    Title:
    SSH to worker nodes
    Summary:
    SSH to worker nodes
    Content:

    Hello everyone

    I created a kubernetes cluster using the quick create and added a public ssh key. But after creating the cluster, all worker nodes don't have public IPs. I read in the documentation that if I added a public key when creating cluster worker nodes will have public IPs.

    Is there something that I missed or am I doing something wrong?

  • enrique ortiz
    kubernetes get ddl1
    Topic posted June 17, 2019 by enrique ortizRed Ribbon: 250+ Points, tagged Kubernetes, Tip 
    Title:
    kubernetes get ddl
    Content:

    hi all 

    i want to know if there is a way to create an script ( terraform , ansible ) from a manually created kubernetes cluster in order to recreate it on another compartment 

     

    thanks

  • Olivier Maurice
    Persistent volumes between worker nodesAnswered15.0
    Topic posted November 14, 2018 by Olivier MauriceRed Ribbon: 250+ Points, tagged Kubernetes, Tip 
    Title:
    Persistent volumes between worker nodes
    Summary:
    Looking into how to share PVCs between worker nodes in different ADs
    Content:

    Hi,

    Use case: a POD that only has 1 replica, but with a PVC attached. In this particular case the nodepool has 2 worker nodes, 1 in each AD.

    In the yaml for the PVC you have to state the AD you want the storage to be created in.

    Now I am wondering: if somehow the POD gets moved from the worker node on AD1 to the worker node on AD2, is all the data contained on the PVC following to the other AD?

    On GKE (Google) you can provision something like a 'regional' persistence volume, over different zones. Anything like this available on OKE?
    And what with the availability of the data over the ADs?

    Is it an option to look at the File Storage Service to share the storage between the worker nodes? But how explain OKE to pipe the claim to the File Storage service?

     

    Thanks for your input,

    Olivier

    Version:
    11.1
  • Shivin Vijai
    Can I run Fn on OKE14.3
    Topic posted August 20, 2018 by Shivin VijaiSilver Medal: 2,000+ Points, tagged Containers, Docker, Kubernetes, Tip 
    Title:
    Can I run Fn on OKE
    Content:

    Can I run Fn on OKE?

  • Shivin Vijai
    Oracle Container Registry support signed images?14.5
    Topic posted August 2, 2018 by Shivin VijaiSilver Medal: 2,000+ Points, tagged Containers, Docker, Kubernetes, Registry 
    Title:
    Oracle Container Registry support signed images?
    Summary:
    I need to deploy (push and pull) signed images on Kubernetes
    Content:

    As far I know Oracle Container Registry currently do not support signed images. Is it true? Is there any good workarounds for that. What is the gap from a normal kubernetes deployment using a unsigned image?

    I need to have content trust in docker images. Content trust gives me the ability to verify both the integrity and the publisher of all the data received from a registry over any channel.

    I am looking this for a production set.

    Regards

    -Shivin

  • Sayan Malakshinov
    Containers based on Windows15.0
    Topic posted July 31, 2018 by Sayan Malakshinov, tagged Containers, Docker, Kubernetes 
    Title:
    Containers based on Windows
    Content:

    One of our main applications requires IIS with .Net Framework, which is platform-dependent and requires docker host on Windows, but Oracle Cloud Container Service and Oracle Application Container Service currently support Linux hosts only.

    If we try to deploy official docker dotnet-framework image by Microsoft we get error:

    ERROR Failed to pull image microsoft/dotnet-framework-samples:aspnetapp due to error no supported platform found in manifest list
    Error: no supported platform found in manifest list
    

     How can we ask Oracle to add containers based on Windows?

  • Jie Zhao
    Is OCM support Container CS?15.0
    Topic posted May 26, 2017 by Jie ZhaoGreen Ribbon: 100+ Points 
    Title:
    Is OCM support Container CS?
    Summary:
    Is OCM support Container CS?
    Content:

    Is OCM support Container CS?

  • Jie Zhao
    Can I access the Manager Node and Worker Node with root...15.0
    Topic posted May 26, 2017 by Jie ZhaoGreen Ribbon: 100+ Points 
    Title:
    Can I access the Manager Node and Worker Node with root privilege?
    Summary:
    Can I access the Manager Node and Worker Node with root privilege?
    Content:

    Can I access the Manager Node and Worker Node with root privilege?

  • Sergio Fantin
    Install Gateway node in OCCS15.0
    Topic posted May 24, 2017 by Sergio FantinGreen Ribbon: 100+ Points 
    Title:
    Install Gateway node in OCCS
    Summary:
    Install Gateway node in OCCS
    Content:

    Hi guys,

    a client is questioning about installing a gateway node within a container.

    Following the documentation, I found that there are two possibilities:

    "A gateway node is the physical gateway runtime installation. Gateway nodes can be installed on-premise or in the cloud."

    https://docs.oracle.com/en/cloud/paas/api-platform-cloud/apfad/understanding-gateways-and-gateway-nodes.html#GUID-3800FE71-88DC-4892-B576-1F1F4BC33019

    Does anyone know if it is possible and supported by Oracle?

    Cheers,

    Sergio Fantin