I'm trying to create a VM with docker and boot2docker. I've made the following Dockerfile, which I'm trying to run through the command line
docker run Dockerfile
Immidiatly it says exactly this:
Unable to find image 'Dockerfile:latest' locally
FATA[0000] Invalid repository name <Dockerfile>, only [a-z0-9_.] are allowed
Dockerfile:
FROM ubuntu:latest
#Oracle Java7 install
RUN apt-get install software-properties-common -y
RUN apt-get update
RUN add-apt-repository -y ppa:webupd8team/java
RUN apt-get update
RUN echo oracle-java7-installer shared/accepted-oracle-license-v1-1 select true | /usr/bin/debconf-set-selections
RUN apt-get install -y oracle-java7-installer
#Jenkins install
RUN wget -q -O - http://pkg.jenkins-ci.org/debian/jenkins-ci.org.key | sudo apt-key add -
RUN sudo echo "deb http://pkg.jenkins-ci.org/debian binary/" >> /etc/apt/sources.list
RUN apt-get update
RUN apt-get install --force-yes -y jenkins
RUN sudo service jenkins start
#Zip support install
RUN apt-get update
RUN apt-get -y install zip
#Unzip hang.zip
RUN unzip -o /var/jenkins/hang.zip -d /var/lib/jenkins/
RUN chown -R jenkins:jenkins /vaR/lib/jenkins
RUN service jenkins restart
EXEC tail -f /etc/passwd
EXPOSE 8080
I am in the directory where the Dockerfile is, when trying to run this command.
Ignore the zip part, as that's for later use
You should run docker build first (which actually uses your Dockerfile):
docker build --tag=imagename .
Or
docker build --tag=imagename -f yourDockerfile .
Then you would use that image tag to docker run it:
docker run imagename
There are tools that can provide this type of feature.
We have achieved using docker compose, though you have to go through
(https://docs.docker.com/compose/overview/)
docker-compose up
but you can also do as work around
$ docker build -t foo . && docker run foo.
Related
I want a minimal image of ubuntu which is having docker and terraform installed in it.
where as I am trying to write Dockerfile as below please suggest me which one is best practice while writing Dockerfile:
FROM ubuntu
FROM docker
FROM hashicorp/terraform
RUN terraform --version
RUN docker --version
getting error as below for above Dockerfile:
/bin/sh: docker: not found
The command '/bin/sh -c docker --version' returned a non-zero code: 127
or
FROM ubuntu:latest AS ubuntu
RUN apt update && apt upgrade -y
RUN apt install unzip -y
COPY terraform.zip /home/
RUN unzip /home/terraform.zip
RUN mv terraform /usr/local/bin/
RUN terraform version
FROM docker
COPY --from=ubuntu /usr/local/bin/ /usr/local/bin
RUN terraform version
This is a quick and dirty solution just to get it working - hopefully it helps you.
Dockerfile:
# Choose your desired ubuntu version instead of :latest
FROM ubuntu:latest
RUN apt-get update
# Install docker + other packages to get terraform setup
RUN apt install docker.io gnupg curl software-properties-common -y
# Setup terraform
RUN curl -fsSL https://apt.releases.hashicorp.com/gpg | apt-key add -
RUN apt-add-repository "deb [arch=$(dpkg --print-architecture)] https://apt.releases.hashicorp.com $(lsb_release -cs) main"
RUN apt update
RUN apt install terraform
# Run the container
CMD [ "bash" ]
Commands to run:
docker build . -t myapp
docker run -ti --entrypoint /bin/sh myapp
Now that you're in the container:
# terraform -v
Terraform v1.2.8
on linux_amd64
# docker --version
Docker version 20.10.12, build 20.10.12-0ubuntu4
Inside my dockerfile I have:
FROM ubuntu:latest
FROM python:latest
RUN sudo apt-get update
RUN apt-get install nmap
But I have a problem where the last line doesn't work because of sudo, how may I fix this?
The following works for me:
RUN apt-get update && \
apt-get install -y --no-install-recommends \
nmap
-y means automatic "yes" answer to all prompts and runs non-interactively.
Since your first FROM statement doesn't do anything and you're already running as root, you can change your Dockerfile to
FROM python:latest
RUN apt-get update
RUN apt-get install -y nmap
Build and run with
docker build -t myimage .
docker run -it myimage /bin/bash
Now you're in a shell in the container. You can now run whoami to verify that you're running as root and you can run nmap.
I have a dockerfile look like this
FROM ubuntu
MAINTAINER abc <abc.yur#gmail.com>
RUN apt-get update
RUN apt-get install nano
RUN apt-get install -y software-properties-common python-software-properties
RUN add-apt-repository ppa:longsleep/golang-backports
RUN apt-get update
RUN apt-get -y install golang-go git
RUN mkdir /work
ENV GOPATH=/work
RUN go get github.com/abc/golang
RUN go build github.com/abc/golang
CMD /golang -addr $ADDR -workers $WORKERS
So I want to build and run container but after the building (docker build .) I can not run this container. So when I am running docker ps -a or docker ps there is not container to run
docker build .
This creates the image and not a container. You need to use
docker images
To get the list of images.
docker ps will show when you run a container using something like below
docker run -d <image>
If I run my Dockerfile with the following command, the docker container starts running and all is well.
docker run --name test1 -i -t 660c93c32a
However, if I run this command without the -it, the container does not appear to be running as docker ps returns nothing:
docker run -d --name test1 660c93c32a
.
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS
PORTS NAMES
All I'm trying to do is run the container and then be able to attach and/or open a shell in the container later.
Not sure if the issue is in my dockerfile or not, so have pasted the dockerfile below.
############################################################
# Dockerfile to build Ubuntu/Ansible/Django
############################################################
# Set the base image to Ansible
FROM ubuntu:16.10
# File Author / Maintainer
MAINTAINER David
# Install Ansible and Related Deps #
RUN apt-get -y update && \
apt-get install -y python-yaml python-jinja2 python-httplib2 python-keyczar python-paramiko python-setuptools python-pkg-resources git python-pip
RUN mkdir /etc/ansible/
RUN echo '[local]\nlocalhost\n' > /etc/ansible/hosts
RUN mkdir /opt/ansible/
RUN git clone http://github.com/ansible/ansible.git /opt/ansible/ansible
WORKDIR /opt/ansible/ansible
RUN git submodule update --init
ENV PATH /opt/ansible/ansible/bin:/bin:/usr/bin:/usr/local/bin:/sbin:/usr/sbin
ENV PYTHONPATH /opt/ansible/ansible/lib
ENV ANSIBLE_LIBRARY /opt/ansible/ansible/library
# Update the repository sources list
RUN apt-get update -y
RUN apt-get install python -y
RUN apt-get install python-dev -y
RUN apt-get install python-setuptools -y
RUN apt-get install python-pip
RUN mkdir /ansible/
WORKDIR /ansible
COPY ./ansible ./
WORKDIR /
RUN ansible-playbook -c local ansible/playbooks/installdjango.yml
ENV PROJECTNAME davidswebsite
CMD django-admin startproject $PROJECTNAME
When you run your container, command after CMD or ENTRYPOINT becomes $1 process of you container. If this process doesn't run well, your container will die.
So, check container logs using: docker logs <container id>
and recheck your command in CMD django-admin startproject $PROJECTNAME
I am following cloudera cdh4 installation guide.
My base file
FROM ubuntu:precise
RUN apt-get update -y
#RUN apt-get install -y curl
RUN apt-get install -y software-properties-common python-software-properties
RUN add-apt-repository ppa:webupd8team/java
RUN apt-get update -y
RUN echo debconf shared/accepted-oracle-license-v1-1 select true | \
debconf-set-selections
RUN apt-get install -y oracle-java7-installer
#Checking java version
RUN java -version
My hadoop installation file
java_ubuntu is the image build from my base file.
FROM java_ubuntu:latest
RUN apt-get update -y
RUN apt-get install -y curl
RUN curl http://archive.cloudera.com/cdh4/one-click-install/precise/amd64/cdh4-repository_1.0_all.deb > cdh4-repository_1.0_all.deb
RUN dpkg -i cdh4-repository_1.0_all.deb
RUN curl -s http://archive.cloudera.com/cdh4/ubuntu/precise/amd64/cdh/archive.key | apt-key add -
RUN apt-get update -y
RUN apt-get install -y hadoop-0.20-conf-pseudo
#Check for /etc/hadoop/conf.pseudo.mrl to verfiy hadoop packages
RUN echo "dhis"
RUN dpkg -L hadoop-0.20-conf-pseudo
Supervisor part
hadoop_ubuntu is the image build from my hadoop installation docker file
FROM hadoop_ubuntu:latest
USER hdfs
RUN hdfs namenode -format
USER root
RUN apt-get install -y supervisor
RUN echo "[supervisord] nodameon=true [program=namenode] command=/etc/init.d/hadoop-hdfs-namenode -D" > /etc/supervisorconf.d
CMD ["/usr/bin/supervisord"]
Program is successfully build. But namenode is not starting up? How to use supervisor?
You have your config in /etc/supervisorconf.d and I don't believe that's the right location.
It should be /etc/supervisor/conf.d/supervisord.conf instead.
Also it's easier to maintain if you make a file locally and then use the COPY instruction to put it in the image.
Then as someone mentioned you can connect to the container after it's running (docker exec -it <container id> /bin/bash) and then run supervisorctl to see what's running and what might be wrong.
Perhaps you need line breaks in your supervisor.conf. Try hand crafting one and COPY it into your dockerfile for testing.
Docker and supervisord