I have launched an ubuntu EC2 instance and tried to install Jenkins on it.
Below are the commands i used
sudo add-apt-repository ppa:webupd8team/java
sudo apt install oracle-java8-installer
wget -q -O - https://pkg.jenkins.io/debian-stable/jenkins.io.key | sudo apt-key add -
sudo apt-add-repository "deb https://pkg.jenkins.io/debian-stable binary/"
sudo apt install jenkins
My jenkins installation was successful but when i go to browser and tried
http://172.31.38.179:8080/.I am not able to get the jenkins page
Please suggest what i am missing here ?
Go to the security group attached to your ec2 instance.
Edit and add TCP on port 8080 from all and you are good to go . Please let me know if there’s any issues.
Related
I run Fedora 35, and need to run an app in docker in ubuntu.
I was able to get and run ubuntu via podman
podman pull ubuntu:20.04
and setup do docker there, but can't make it run as I probably didn't enter podman properly probably. I used:
podman run -it ubuntu:20.04
where I ran:
su -
apt update; apt upgrade
apt install inetutils-ping nano sudo npm
apt install apt-transport-https ca-certificates curl gnupg
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
echo "deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu \ $(lsb_release -cs) stable" |sudo tee /etc/apt/sources.list.d/docker.list > /dev/null apt update
apt install docker-ce docker-ce-cli containerd.io
to start docker via systectl is not possible in the container, and dockerd command gives many error, mostly that it can't access overlay, and probably network (iptables)
ERRO[2022-05-07T23:14:18.803335993+02:00] failed to mount overlay: operation not permitted storage-driver=overlay2
ERRO[2022-05-07T23:14:18.803397023+02:00] exec: "fuse-overlayfs": executable file not found in $PATH storage-driver=fuse-overlayfs
ERRO[2022-05-07T23:14:18.803500924+02:00] AUFS wdas not found in /proc/filesystems storage-driver=aufs
ERRO[2022-05-07T23:14:18.803887884+02:00] failed to mount overlay: operation not permitted storage-driver=overlay
Is it possible at all to run and app with service to have open port to outside of docker, and podman as there are 2 layers of nested containers?
It is not possible to use the default storage driver of type overlay inside another container, you need to change the storage to vfs. Maybe https://docs.docker.com/storage/storagedriver/vfs-driver/ helps.
Disclaimer: This works definitely in case of running podman in docker, but the other way around I have not tested.
I'm setting up Jenkins on my local machine to get it ready for a production deployer environment. I need to make sure that my setup steps mirror the production setup. Production is running Ubuntu 16.04, while my local machine is running macOS Catalina.
To make sure I can walk through setup as will be necessary on production, I'm using Docker to run the same OS as prod and installing Jenkins in that container.
I have installed Jenkins in the Docker container (which is FROM ubuntu:16.04). I'm unsure of the next steps though. How to I expose the Jenkins frontend so that I may access it in my browser?
This may not be necessary to answer the question, but here's by Dockerfile:
FROM ubuntu:16.04
RUN apt-get update
# Install Jenkins dependencies and Jenkins
RUN apt-get install -y wget sudo vim apt-transport-https ca-certificates apt-utils
RUN wget -q -O - https://pkg.jenkins.io/debian-stable/jenkins.io.key | sudo apt-key add -
RUN sh -c 'echo deb https://pkg.jenkins.io/debian-stable binary/ > \
/etc/apt/sources.list.d/jenkins.list'
RUN apt-get update
RUN apt-get install -y jenkins
# Install Java
RUN apt-get -o Dpkg::Options::="--force-overwrite" install -y openjdk-8-jdk
# add the java binaries to jenkins PATH
RUN sed -i "s|PATH=/bin:/usr/bin:/sbin:/usr/sbin|PATH=/bin:/usr/bin:/sbin:/usr/sbin:/usr/lib/jvm/java-8-openjdk-amd64/bin|g" \
/etc/init.d/jenkins
After building that, I exec in and run service jenkins start to start Jenkins.
Newbie to Docker, thanks for the help!
To get access to jenkins web interface you need to expose it's default port (8080) while running container with jenkins master.
For example:
docker run -dit -p 8080:8080 your_jenkins_image
I am trying to install Docker in Ubuntu on Windows 10 using script below but then I try to run Docker as service service docker start the Docker does not starts and I find an error in docker.log. I was using the same installation instruction on plain Ubuntu machine and had no problem running docker.
failed to start daemon: Error initializing network controller: Error creating default "bridge" network: Failed to Setup IP tables: Unable to enable NAT rule: (iptables failed: iptables --wait -t nat -I POSTROUTING -s 172.18.0.0/16 ! -o docker0 -j MASQUERADE: iptables: Invalid argument. Run `dmesg' for more information.
(exit status 1))
Installation script
# Update the apt package list.
sudo apt-get update -y
# Install Docker's package dependencies.
sudo apt-get install -y \
apt-transport-https \
ca-certificates \
curl \
software-properties-common
# Download and add Docker's official public PGP key.
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
# Verify the fingerprint.
sudo apt-key fingerprint 0EBFCD88
# Add the `stable` channel's Docker upstream repository.
#
# If you want to live on the edge, you can change "stable" below to "test" or
# "nightly". I highly recommend sticking with stable!
sudo add-apt-repository \
"deb [arch=amd64] https://download.docker.com/linux/ubuntu \
$(lsb_release -cs) \
stable"
# Update the apt package list (for the new apt repo).
sudo apt-get update -y
# Install the latest version of Docker CE.
sudo apt-get install -y docker-ce
# Allow your user to access the Docker CLI without needing root access.
sudo usermod -aG docker $USER
I encountered the same problem and here is what I found out.
It currently isn't possible to run docker in WSL. The work around is
Update the apt package with:
sudo apt-get update
Install packages to allow apt to use a repository over HTTPS with:
sudo apt-get install apt-transport-https ca-certificates curl software-properties-common
Add docker's GPG key:
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
Set up a stable repository with:
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
Update the apt package again:
sudo apt-get update
Install docker DCE:
sudo apt-get install docker-ce
Then add this command which notifies docker of the host to communicate:
echo "export DOCKER_HOST=localhost:2375" >> ~/.bash_profile
Restart your vscode
Install docker desktop and go to your settings and check the "Expose daemon tcp://localhost:2375 without TLS".
With this, I was able to run docker in WSL(ubuntu). Hope it helps.
credit: https://medium.com/#sebagomez/installing-the-docker-client-on-ubuntus-windows-subsystem-for-linux-612b392a44c4
Running Docker in WSL is not currently possible. You will have to install Docker Desktop in Windows. Then you can install the Docker CLI in WSL and use docker from there
If you have enabled the WSL2 preview feature you can install Docker Desktop in WSL 2 mode, which will give much better performance
I have checked the option Expose the daemon on tcp... in docker on windows, and am now trying to connect from WSL. I have run all those commands:
# Update the apt package list.
sudo apt-get update -y
# Install Docker's package dependencies.
sudo apt-get install -y \
apt-transport-https \
ca-certificates \
curl \
software-properties-common
# Download and add Docker's official public PGP key.
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
# Verify the fingerprint.
sudo apt-key fingerprint 0EBFCD88
# Add the `stable` channel's Docker upstream repository.
#
# If you want to live on the edge, you can change "stable" below to "test" or
# "nightly". I highly recommend sticking with stable!
sudo add-apt-repository \
"deb [arch=amd64] https://download.docker.com/linux/ubuntu \
$(lsb_release -cs) \
stable"
# Update the apt package list (for the new apt repo).
sudo apt-get update -y
# Install the latest version of Docker CE.
sudo apt-get install -y docker-ce
# Allow your user to access the Docker CLI without needing root access.
sudo usermod -aG docker $USER
echo "export DOCKER_HOST=tcp://localhost:2375" >> ~/.bashrc && source ~/.bashrc
However, docker info only gives me:
Client:
Debug Mode: false
Server:
ERROR: Cannot connect to the Docker daemon at tcp://localhost:2375. Is the docker daemon running?
errors pretty printing info
What might be wrong? I have been trying this all day. I am running WSL and Ubuntu 18.04, not WSL 2, as the update that brings WSL 2 doesn't seem to be avaible yet without an insider build.
if you run env | sort do you see the DOCKER_HOST=tcp://localhost:2375 variable? if not you may need to run source ~/.bashrc to load the new environment variable into the current console.
Alternatively start a new terminal instance.
Also and this may seem like a daft question but i have to ask, is docker running correctly? from powershell if you run docker info does it return the status of the docker server?
I need to install Docker in an Ubuntu 18 machine which do not have any internet access. There are plethora of instruction material exist on this this subject but all they require Ubuntu machine to be online.
Any help on offline installation of Docker will be highly helpful.
Thanks,
On any machine with internet access, do the following:
Go to https://download.docker.com/linux/ubuntu/dists
Choose your Ubuntu distribution (For 18.0.4 it would be beaver/)
Navigate to pool/stable/<processor architecture>
Download the most recent version of each package
After transferring the .deb files to your offline Ubuntu machine/VM:
In a terminal, navigate to the folder which contains your .deb files
Execute dpkg -i <package1> <package2> <package3> in order to install the downloaded packages
Verify that the service is running by switching to /opt/ and executing systemctl status docker.service
After this you should be able to configure your docker installation and import packages via the docker load command
Run these commands:
sudo apt install apt-transport-https ca-certificates curl software-properties-common
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu `lsb_release -cs` test"
sudo apt update
sudo apt install docker-ce