I want to install netstat on my Docker container.
I looked here https://askubuntu.com/questions/813579/netstat-or-alternative-in-docker-ubuntu-server-16-04-container so I'm trying to install it like this:
apt-get install net-tools
However, I'm getting:
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package net-tools
So how can I install netstat?
You need to run apt-get update first to download the current state of the package repositories. Docker images do not include this to save space, and because they'd likely be outdated when you use it. If you are doing this in a Dockerfile, make sure to keep it as a single RUN command so that caching of the layers doesn't cache an old version of the update command with a new package install request:
RUN apt-get update \
&& DEBIAN_FRONTEND=noninteractive apt-get install -y \
net-tools \
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/*
netstat is provided by the net-tools package,net-tools is probably not installed by default in the Docker image for Ubuntu 16.04 to keep the image size as small as possible.
Execute the following commands inside docker container:
apt update
apt install net-tools
Related
EDIT
While troubleshooting I'm getting different errors:
...
Err:1 http://deb.debian.org/debian bullseye InRelease
Temporary failure resolving 'deb.debian.org'
...
I'm guessing it has something to do with my firewall settings(nftables)
Runningdocker run busybox nslookup google.com
gives me
;; connection timed out; no servers could be reached so the docker has no connection to the outside?
Systems
Dev environment: Ubuntu 22.04
Prod environment: debian 10.12 64bit / Linux 4.19.0-20-amd64
Dockerfile inside my node backend folder
FROM node:slim
# Install wkhtmltopdf
RUN apt-get update
RUN apt-get install -y wkhtmltopdf
RUN npm install -g pm2#latest
WORKDIR /var/api
COPY . .
RUN npm i
EXPOSE 10051-10053
# Start PM2 as PID 1 process
ENTRYPOINT ["pm2-runtime"]
CMD ["process.json"]
When building this file on my dev system (Ubuntu 22.04) it works fine.
However, deploying it go my server and letting it build, I get this output:
Building backend
Sending build context to Docker daemon 159.2kB
Step 1/10 : FROM node:slim
---> 6c8b32c67190
Step 2/10 : RUN apt-get update
---> Using cache
---> b28ad6ee8ebf
Step 3/10 : RUN apt-get install -y wkhtmltopdf
---> Running in 2f76d2582ac0
Reading package lists...
Building dependency tree...
Reading state information...
E: Unable to locate package wkhtmltopdf
The command '/bin/sh -c apt-get install -y wkhtmltopdf' returned a non-zero code: 100
ERROR: Service 'backend' failed to build : Build failed
What I have tried
Running apt-get install -y wkhtmltopdf solo on my server installs the package fine.
Added different repos to the /etc/apt/sources.list
I know its package https://packages.debian.org/buster/wkhtmltopdf (?)
Some troubleshooting.
According to Docker docs:
Using apt-get update alone in a RUN statement causes caching issues and subsequent apt-get install instructions fail.
So for your case, you should do:
RUN apt-get update && apt-get install -y wkhtmltopdf
Instead of:
RUN apt-get update
RUN apt-get install -y wkhtmltopdf
I found the solution, problem was nftables and docker.
Docker adds iptables rules to the ruleset, all I have to do was this:
use an ip and ipv6 table instead of inet
name all chains exactly as in iptables: INPUT, OUTPUT & FORWARD
source: https://ehlers.berlin/blog/nftables-and-docker/
Instead of fixing the problem, I downloaded .deb and installed it, in my case with gdebi but you can also use dpkg.
RUN echo "### Install wkhtmltopdf ###" \
&& wget -nv -O /tmp/wkhtmltopdf.deb https://github.com/wkhtmltopdf/packaging/releases/download/0.12.6-1/wkhtmltox_0.12.6-1.buster_amd64.deb \
&& gdebi --non-interactive /tmp/wkhtmltopdf.deb
I am about to deploy a model on Azure but the model needs a special package installed on Ubuntu. My model is written in python and I have a python-wrapper installed (and other necessary pip packages) already in the environment.
The challenge is that the wrapper needs the special package to be installed on the Ubuntu. How and at what point I need to specify what packages I want to be installed on Ubuntu when creating the environment? The package is not a default one.
The following code snippet helped me to solve this. Just substitute the package you want to install into "<'package-1'>".
FROM <prebuilt docker image from MCR>
# Switch to root to install apt packages
USER root:root
RUN apt-get update && \
apt-get install -y \
**<package-1>** \
...
<package-n> && \
apt-get clean -y && \
rm -rf /var/lib/apt/lists/*
# Switch back to non-root user
USER dockeruser
The complete tutorial can be found here: https://learn.microsoft.com/en-us/azure/machine-learning/how-to-extend-prebuilt-docker-image-inference
I am running PHP 7.2 on an Apache server on Ubuntu, and I need to add the PHP SoapClient. However, when I try to install it using apt-get, I get the following error:
The following packages have unmet dependencies:
php7.2-soap : Depends: php7.2-common (= 7.2.24-0ubuntu0.19.04.2) but 7.2.26-1+ubuntu19.04.1+deb.sury.org+1 is to be installed
E: Unable to correct problems, you have held broken packages.
I've tried the following before reattempting:
sudo apt-get update
sudo apt-get clean && sudo apt-get update
sudo apt-get upgrade
sudo apt-get upgrade-dist
sudo apt-get -f install
sudo dpkg --configure -a
If it helps, when I run uname -r the output is
5.0.0-37-generic
Thanks in advance!
After a looooong time tackling this issue I finally got my head around it and found a solution :)
It seems the issue is I was using the ppa:ondrej/apache2 PPA which was installing the latest version of a selection of PHP packages, which at the time of writing is using PHP7.2.27. As far as I can tell, the most up-to-date version of the php7.2-soap package is for php7.2.24, meaning there is an unmet dependency for the php7.2-common package provided by the PPA.
So, the solution was to remove the PPA and downgrade the PHP packages. Here's a step by step for any poor souls who might encounter a similar issue:
First, if not already installed, install aptitude sudo apt-get install aptitude
Next, install ppa-purge:
mkdir ppa-purge && cd ppa-purge && wget http://mirror.pnl.gov/ubuntu/pool/universe/p/ppa-purge/ppa-purge_0.2.8+bzr56_all.deb && wget http://mirror.pnl.gov/ubuntu//pool/main/a/aptitude/aptitude_0.6.6-1ubuntu1_i386.deb && sudo dpkg -i ./*.deb
(I ran this in my user folder, i.e. ~/
Then I remove the PPA with the following commands:
sudo ppa-purge ppa:ondrej/apache2
sudo add-apt-repository --remove ppa:ondrej/apache2
sudo apt-get autoclean
Now we need to downgrade the dependencies. First I determined which version I needed. The package that was causing the unmet dependency was php7.2-common, so I ran sudo apt list -a php7.2-common. I chose the version which matched the original error message, in this case, 7.2.24-0ubuntu0.19.04.2.
So you are able to install a specific version by following the package with a = then a version number. If you, like me, are working on a live server, I'm going to shout this next bit about the next command you will write:
DO NOT USE THE -y TAG!!
CHOOSE "NO" WHEN IT ASKS YOU IF YOU WANT TO CONTINUE!!
If you do any of these, it will automatically remove any dependencies for php7.2-common and the PHP stop working on your site.
To determine which dependencies we need to update along with php7.2-common, I ran sudo apt-get install php7.2-common=7.2.24-0ubuntu0.19.04.2. It then showed me a list of other packages it would remove as well. I copied these dependencies then chose 'n' to cancel the install.
Next, I put the copied list into a text editor and used it to create the following script:
sudo apt-get install php7.2-common=7.2.24-0ubuntu0.19.04.2 \
libapache2-mod-php7.2=7.2.24-0ubuntu0.19.04.2 \
php7.2=7.2.24-0ubuntu0.19.04.2 \
php7.2-bcmath=7.2.24-0ubuntu0.19.04.2 \
php7.2-bz2=7.2.24-0ubuntu0.19.04.2 \
php7.2-cgi=7.2.24-0ubuntu0.19.04.2 \
php7.2-cli=7.2.24-0ubuntu0.19.04.2 \
php7.2-curl=7.2.24-0ubuntu0.19.04.2 \
php7.2-dev=7.2.24-0ubuntu0.19.04.2 \
php7.2-enchant=7.2.24-0ubuntu0.19.04.2 \
php7.2-fpm=7.2.24-0ubuntu0.19.04.2 \
php7.2-gd=7.2.24-0ubuntu0.19.04.2 \
php7.2-imap=7.2.24-0ubuntu0.19.04.2 \
php7.2-intl=7.2.24-0ubuntu0.19.04.2 \
php7.2-json=7.2.24-0ubuntu0.19.04.2 \
php7.2-ldap=7.2.24-0ubuntu0.19.04.2 \
php7.2-mbstring=7.2.24-0ubuntu0.19.04.2 \
php7.2-mysql=7.2.24-0ubuntu0.19.04.2 \
php7.2-odbc=7.2.24-0ubuntu0.19.04.2 \
php7.2-opcache=7.2.24-0ubuntu0.19.04.2 \
php7.2-pspell=7.2.24-0ubuntu0.19.04.2 \
php7.2-readline=7.2.24-0ubuntu0.19.04.2 \
php7.2-tidy=7.2.24-0ubuntu0.19.04.2 \
php7.2-xml=7.2.24-0ubuntu0.19.04.2 \
php7.2-xmlrpc=7.2.24-0ubuntu0.19.04.2 \
php7.2-zip=7.2.24-0ubuntu0.19.04.2
Finally, I ran this command. Instead of warning me about removing the packages, it warned me that these packages would be "downgraded", which is fine. I pressed Y and it reinstalled all the packages and viola! I was then able to install php7.2-soap :)
See these links which I credit to finding a solution for this:
https://askubuntu.com/a/92021
https://appuals.com/fix-unmet-dependencies-error-ubuntu/
I have a similar issue one month ago with a Debian 9 and PHP 7 Did you consider to upgrade your PHP to the latest stable version before installing the PHP Client ?
I have installed docker on my host virtual machine. And now want to create a file using vi.
But it's showing me an error:
bash: vi: command not found
login into container with the following command:
docker exec -it <container> bash
Then , run the following command .
apt-get update
apt-get install vim
The command to run depends on what base image you are using.
For Alpine, vi is installed as part of the base OS. Installing vim would be:
apk -U add vim
For Debian and Ubuntu:
apt-get update && apt-get install -y vim
For CentOS, vi is usually installed with the base OS. For vim:
yum install -y vim
This should only be done in early development. Once you get a working container, the changes to files should be made to your image or configs stored outside of your container. Update your Dockerfile and other files it uses to build a new image. This certainly shouldn't be done in production since changes inside the container are by design ephemeral and will be lost when the container is replaced.
USE THIS:
apt-get update && apt-get install -y vim
Explanation of the above command
apt-get update => Will update the current package
apt-get install => Will install the package
-y => Will by pass the permission, default permission will set to Yes.
vim => Name of the package you want to install.
Your container probably haven't installed it out of the box.
Run apt-get install vim in the terminal and you should be ready to go.
Add the following line in your Dockerfile then rebuild the docker image.
RUN apt-get update && apt-get install -y vim
Alternatively, keep your docker images small by not installing unnecessary editors. You can edit the files over ssh from the docker host to the container:
vim scp://remoteuser#container-ip//path/to/document
error:: bash: vi: command not found
run the below command by logging as root user to the container--
docker exec --user="root" -it (container ID) /bin/bash
apt-get update
apt-get install vim
Use below command in Debian based container:
apt-get install vim-tiny
Complete instruction for using in Dockerfile:
RUN apt-get update && apt-get install --no-install-recommends -y \
vim-tiny \
&& apt-get clean && rm -rf /var/lib/apt/lists/*
It doesn't install unnecessary packages and removes unnecessary downloaded files, so your docker image size won't increase dramatically.
The most voted answer has the correct idea, however, it did not work in my case. The comment from #java25 did the trick in my case. I had to log into the docker container as a root user to install vim. I am just posting the comment as an answer so that it is easier for others, having the similar problem, to find it.
docker exec -ti --user root <container-id> /bin/bash
Once you are inside docker, run the following commands now to install vi.
apt-get update
apt-get install vim
To install within your Docker container you can run command
docker exec apt-get update && apt-get install -y vim
But this will be limited to the container in which vim is installed.
To make it available to all the containers, edit the Dockerfile and add
RUN apt-get update && apt-get install -y vim
or you can also extend the image in the new Dockerfile and add above command. Eg.
FROM < image name >
RUN apt-get update && apt-get install -y vim
Inside container (in docker, not in VM), by default these are not installed.
Even apt-get, wget will not work. My VM is running on Ubuntu 17.10. For me yum package manager worked.
Yum is not part of Debian or ubuntu. It is part of red-hat. But, it works in Ubuntu and it is installed by default like apt-get
To install vim, use this command
yum install -y vim-enhanced
To uninstall vim :
yum uninstall -y vim-enhanced
Similarly,
yum install -y wget
yum install -y sudo
-y is for assuming yes if prompted for any question asked after doing yum install package-name
error:: bash: vim: command not found
Run the below command by logging as root user to the container:
microdnf install -y vim
If you actually want a small editor for simple housekeeping in a docker, use this in your Dockerfile:
RUN apt-get install -y busybox && ln -s /bin/busybox /bin/vi
I used it on an Ubuntu 18 based docker.
(Of course you might need an RUN apt-get update before it but if you are making your own Docker file you probably already have that.)
Usually changing a file in a docker container is not a good idea. Everyone will forget about the change after a while. A good way is to make another docker image from the original one.
Say in a docker image, you need to change a file named myFile.xml under /path/to/docker/image/. So, you need to do.
Copy myFile.xml in your local filesystem and make necessary changes.
Create a file named 'Dockerfile' with the following content-
FROM docker-repo:tag
ADD myFile.xml /path/to/docker/image/
Then build your own docker image with docker build -t docker-repo:v-x.x.x .
Then use your newly build docker image.
I followed some instructions to install node.js on a Linux server and ran in to the following blocks. I started out by doing sudo apt-get install python-software-properties and that worked fine. Then, I did sudo add-apt-repository ppa:chris-lea/node.js. But, wait - there is no command add-apt-repository. OK, so I looked it up and it told me to do apt-get install software-properties-common and that would have been fine, except it gave me this error:
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package software-properties-common
Well, what can I do to get node.js on my server? Obviously, none of this works and it's Debian, in case you were wondering. I really need help on this. Basically, how can I install software-properties-common if it does not exist? It just won't show up.
For a Debian install of the latest node.js, you should follow these instructions, not requiring you to add the PPA:
sudo apt-get install python g++ make checkinstall
mkdir ~/src && cd $_
wget -N http://nodejs.org/dist/node-latest.tar.gz
tar xzvf node-latest.tar.gz && cd node-v*
./configure
checkinstall #(remove the "v" in front of the version number in the dialog)
sudo dpkg -i node_*
UPDATE: I wrote this a long time ago. Since then, I find using nvm a much less painful way to get node onto machines. As per link, steps are basically reduced to:
curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.0/install.sh | bash
nvm install node