which file or directory is not able to read? - docker

Question

in while i'm trying to build an image im getting following error.
In this image i need to download jenkins, run jenkins in background and then download jenkins-cli, then i have to give my input to cli.
FROM ubuntu:14.04
RUN apt-get update && \
apt-get upgrade -y && \
apt-get install -y software-properties-common && \
add-apt-repository ppa:webupd8team/java -y && \
apt-get update && \
echo oracle-java7-installer shared/accepted-oracle-license-v1-1 select true | /usr/bin/debconf-set-selections && \
apt-get install -f -y oracle-java9-installer && \
apt install -y default-jre curl wget git nano; \
apt-get clean
# Install dependencies
RUN apt-get -y update && \
apt-get -yqq --no-install-recommends install git bzip2 curl unzip && \
apt-get update
ENV JAVA_HOME /usr
ENV PATH $JAVA_HOME/bin:$PATH
# copy jenkins war file to the container
ADD http://mirrors.jenkins.io/war-stable/2.107.1/jenkins.war /opt/jenkins.war
RUN chmod 644 /opt/jenkins.war
ENV JENKINS_HOME /jenkins
# configure the container to run jenkins, mapping container port 8080 to that host port
ENTRYPOINT ["nohup","java", "-jar", "/opt/jenkins.war"]
RUN mkdir /jenkins/
RUN echo 2.107.1 > /jenkins/jenkins.install.UpgradeWizard.state
RUN echo 2.107.1 > /jenkins/jenkins.install.InstallUtil.lastExecVersion
EXPOSE 8080
VOLUME /jenkins
#jenkins-cli installation
RUN mkdir -p /jcli
RUN chmod 644 /jcli
RUN curl --insecure -OL http://192.168.99.100:8080/jnlpJars/jenkins-cli.jar \
--output /jcli/jenkins-cli.jar
VOLUME /ssh
ENV JENKINS_URL "http://192.168.99.100:8080"
ENV PRIVATE_KEY "C:\Users\himn\.ssh/id_rsa"
ENTRYPOINT ["java","-jar","/jcli/jenkins-cli.jar","-noCertificateCheck","-noKeyAuth"]
CMD ["--help"]
QUESTIONS
Is jenkins-cli downloading
which directory its unable to locate
do i need to run jenkins in background to download jenkins-cli aand
work and How to do it?
and solutions for it
Thank u in advance
last few lines of my Dockerfile
# copy jenkins war file to the container
ADD http://mirrors.jenkins.io/war-stable/2.107.1/jenkins.war /opt/jenkins.war
RUN chmod 644 /opt/jenkins.war
ENV JENKINS_HOME /jenkins
# configure the container to run jenkins, mapping container port 8080 to that host port
ENTRYPOINT ["nohup","java", "-jar", "/opt/jenkins.war"]
RUN mkdir /jenkins/
RUN echo 2.107.1 > /jenkins/jenkins.install.UpgradeWizard.state
RUN echo 2.107.1 > /jenkins/jenkins.install.InstallUtil.lastExecVersion
EXPOSE 8080
VOLUME /jenkins
#jenkins-cli installation
RUN mkdir -p /jcli
RUN chmod 644 /jcli
RUN curl --insecure -OL http://192.168.99.100:8080/jnlpJars/jenkins-cli.jar \
--output /jcli/jenkins-cli.jar
VOLUME /ssh
ENV JENKINS_URL "http://192.168.99.100:8080"
ENV PRIVATE_KEY "C:\Users\himn\.ssh/id_rsa"
ENTRYPOINT ["java","-jar","/jcli/jenkins-cli.jar","-noCertificateCheck","-noKeyAuth"]
CMD ["--help"]

Answer 1

you can try after updating your Dockfile entrypoint as
ENTRYPOINT ["java","-jar","/opt/tmp/jenkin-cli.jar","-noCertificateCheck","-noKeyAuth"]
and also remove following lines:
RUN chmod 644 jenkins-cli.jar
WORKDIR /opt/tmp/jenkins-cli
COPY opt/tmp/jenkins-cli.jar ./jenkins-cli

Answer 2

This looks like a typo error. In your curl command i.e step 19/27, --output is /opt/tmp/jenkin-cli.jar it needs to be /opt/tmp/jenkins-cli.jar.
Error states that it is unable to locate the file /opt/tmp/jenkins-cli.jar because you created the file with name jenkin-cli.jar & not jenkins-cli.jar.
Now the 2nd mistake is you are missing / before opt and moreover,
COPY works from host to container & not within the container. In that case, you don't need to download the CLI to create a container and image.