Questions tagged redhat-containers

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How to give non-root user permission to make and give access to a folder in a Dockerfile

I am trying to create/permission to folders using a non-root user using an image from ubi8/ubi-minimal redhat. Here are two questions: Make a folder: Another way to give non-user permission to create folders and give permission to folders. I have searched a bit. Could be possible under the RUN command after it installs all package […]

By Bebe
Published
Categorised as docker, dockerfile, redhat, redhat-containers Tagged , , ,

Exposed ports from docker container cannot able to access on host server by IP Address in RedHat 8

I am running docker container in RedHat 8. In my docker container, I exposed port 8080 for accessible from outside. I can able to telnet 8080 from other servers but I cannot able to telnet 8080 from host server by IP address. Exposed port 8080 cannot access from host server by using IP address. It […]

How can I use host running services in container?

I am trying to use host services in container. I have a ubi8 image with me and while running it I am mounting the host /usr/bin/ dir to container so that the basic services should be available in container but when I try running any cammand like Ping or virsh it simply doesn’t work in […]

Podman how remove all exited containers if there are many

On a server running containers with Podman I just realised, there are many containers with "Exited" status and wanted to remove all of them in one go. How can I do it with Podman? Source: Docker Questions

Unable to use Systemctl commands in centos Docker

I tried to install httpd inside docker container and tried to restart the httpd via systemctl in docker. But I’m getting a exception like below As per my analysis systemctl not enabled by default in docker base images, experts suggested to configure like below. FROM centos:7 ENV container docker RUN (cd /lib/systemd/system/sysinit.target.wants/; for i in […]

Airflow Openshift installation with Dockerfile

I tried to install the Airflow via my own image at a public dockerhub, but it works perfect locally, but when I tried to use it on Openshift. I got this error bellow. `ERROR: Could not install packages due to an OSError: [Errno 13] Permission denied: ‘/.local’ Check the permissions. My Dockerfile working for on […]

AWS RedHat Docker Get Login Password – password-stdin does not exist

Background: I am trying to perform a standard AWS Docker build. The problem is that I am running RHEL which only supports docker version 1.13 not 1.17. This results in the docker login command "–password-stdin" to not be available. My question: How do I login to AWS docker without using password-stdin. My environment: Red Hat […]

/proc/sys/net/ipv4/ip_local_reserved_ports missing from amd64/centos:7 docker container running on RedHat Centos 7

I’ve run into an issue with Docker and RedHat CentOs 7 while attempting to dockerize some rather old software. The steps to reproduce are: docker pull amd64/centos:7 docker run -it –privileged amd64/centos:7 bash [[email protected] /]# echo "net.ipv4.ip_local_reserved_ports = 49001-49053" > /etc/sysctl.conf [[email protected] /]# sysctl -q -p sysctl: cannot stat /proc/sys/net/ipv4/ip_local_reserved_ports: No such file or directory […]

is it possible to Remove unwating sqlite package from one of Redhat linux docker base image

I have redhat linux image for .net core 3.1 registry.redhat.io/dotnet/dotnet-31-runtime-rhel7:latest In docker file of my application i want to create an image without one if the inner reference package (sqlite) Is it possible to remove FROM registry.redhat.io/rhel8/dotnet-31-runtime:latest #RUN yum -y remove sqlite-libs WORKDIR /app COPY . . ENTRYPOINT ["dotnet", "MyApp.dll"] I have tried RUN yum […]

By Kamran Shahid
Published
Categorised as docker, dockerfile, redhat-containers Tagged , ,

how to overriding Red Hat container env Variables thought bootstrap file?

I have pulled my docker container form the Container Catalog registry.access.redhat.com/rhpam-7/rhpam72-kieserver-openshift and can override env variables using the Docker run -e command. But is there a way to build a bootstap config file and copy into the image ina Dockerfile? Where would I put it in the image so that the startup script would find […]

By Ryan O Hara
Published
Categorised as docker, redhat-bpm, redhat-containers

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