I am using a private docker hub repository https://hub.docker.com/u/privaterepoexample/, after which I have built my docker image using the commands below:
docker login
docker build -t privaterepoexample/sre:local .
docker tag 85cf9475bc1c privaterepoexample/sre
docker push privaterepoexample/sre
The output of docker build which shows login.sh added to container:
Executing busybox-1.29.3-r10.trigger
OK: 85 MiB in 57 packages
Removing intermediate container 12fd67450dfc
---> e9ca0b9e4ac4
Step 5/7 : WORKDIR /opt
---> Running in ce881ede94aa
Removing intermediate container ce881ede94aa
---> 2335b4f522ac
Step 6/7 : ADD login.sh /opt
---> 2aabf1712153
Step 7/7 : CMD ["chmod 755 login.sh && ./login.sh"]
---> Running in 8ec824d4e561
Removing intermediate container 8ec824d4e561
---> c97a4ad61578
Successfully built c97a4ad61578
Successfully tagged privaterepoexample/sre:local
The Dockerfile below is built successfully and login.sh is added successfully:
FROM ubuntu:16.04
RUN apt-get update && apt-get install -y \
curl
FROM openjdk:8-jre-alpine
RUN apk --no-cache add curl
WORKDIR /opt
ADD login.sh /opt
CMD ["chmod 755 login.sh && ./login.sh"]
Now here comes with my problem, when I execute docker run like below, I get the error:
docker run -i privaterepoexample/sre
docker: Error response from daemon: OCI runtime create failed: container_linux.go:345: starting container process caused "exec: \"chmod 755 login.sh && ./login.sh\": stat chmod 755 login.sh && ./login.sh:
no such file or directory": unknown.
but why does it say no such file? given when I go inside the docker container, I can see the login.sh script with the command below:
$ docker run -it
privaterepoexample/sre /bin/sh
/opt # ls
login.sh
/opt # cat login.sh
#!/bin/sh
# Black Box Tester!
content=$(curl --location --request POST
"https://api.platform.abc.com/auth/oauth/token" --header
'Content-Type: application/x-www-form-urlencoded' \
--header 'Authorization: Basic ' --data-raw 'grant_type=password&
username=event#abc.com&password=fJff'| jq -r
'.domain_id' )
if [ $content = abc ]
then
echo “Valid Login Token”
else
echo “invalid url”
fi
/opt # exit
You get the error no such file or directory because you are using a so-called CMD in exec form in an unexpected way.
You can fix your Dockerfile in several ways, e.g.:
either use a CMD in shell form:
CMD chmod 755 login.sh && ./login.sh
or keep a CMD in exec form (which is often a good idea), but ensure the first argument of the JSON array is a program, not a composite command. You can do this e.g. by running chmod 755 … beforehand, at build time:
ADD login.sh /opt
RUN chmod 755 login.sh
CMD ["./login.sh"]
For more information on the CMD command and its brother command ENTRYPOINT, see also this other SO answer: CMD doesn't run after ENTRYPOINT in Dockerfile
Related
My Dockerfile copies an init.sh script to the container.
# DOCKERFILE
FROM ubuntu:latest
# a bunch of installation commands
COPY init.sh /
ENTRYPOINT bash init.sh
EXPOSE 80
And I have a docker-compose file with 2 services:
Service1: This service is being scaled.
Service2: Database
I have it so that when the Service1 container starts up, this script will run.
#!/bin/bash
# script
# Missing files directory
if [[ ! -e /var/www/drupal/sites/default/files ]]; then
mkdir /var/www/drupal/sites/default/files
chmod a+w /var/www/drupal/sites/default/files
fi
# Missing settings file
cp /var/www/drupal/sites/default/default.settings.php /var/www/drupal/sites/default/settings.php
chmod a+w /var/www/drupal/sites/default/settings.php
# Install Drush & Install Drupal
cd /var/www/drupal && composer require --dev drush/drush
cd /var/www/drupal && vendor/bin/drush site-install standard \
--db-url=mysql://root:random#mariadb:3306/drupaldb -y \
--site-name=ExampleWebsite \
--account-name=random \
--account-pass=random
# Post-Installation Steps
chmod go-w /var/www/drupal/sites/default/settings.php
chmod go-w /var/www/drupal/sites/default
cd /var/www/drupal && vendor/bin/drush cache-rebuild
/usr/sbin/apache2ctl -D FOREGROUND
However, when I run the command to start up the containers along with --scale docker-compose up -d --scale Service1=5, some of the containers run the script properly on start up but some don't. For the ones that don't, I would have to go into the container and manually run the script, then it's fine.
Shouldn't all the containers be the same and would've run the same script properly?
Instead, I would have to manually go into some of the containers and run the script.
I am creating a lambda function from a docker image, this docker image actually runs a bash script inside of the docker container but when I tried to test that then it gives this following error. But this is successful in local. I tested with commented and uncommented entrypoint. Please help me to figure it out.
The dockerfile -
FROM amazon/aws-cli
USER root
ENV AWS_ACCESS_KEY_ID XXXXXXXXXXXXX
ENV AWS_SECRET_ACCESS_KEY XXXXXXXXXXXXX
ENV AWS_DEFAULT_REGION ap-south-1
# RUN mkdir /tmp
COPY main.sh /tmp
WORKDIR /tmp
RUN chmod +x main.sh
RUN touch file_path_final.txt
RUN touch file_path_initial.txt
RUN touch output_final.json
RUN touch output_initial.json
RUN chmod 777 file_path_final.txt
RUN chmod 777 file_path_initial.txt
RUN chmod 777 output_final.json
RUN chmod 777 output_initial.json
RUN yum install jq -y
# ENTRYPOINT ./main.sh ; /bin/bash
ENTRYPOINT ["/bin/sh", "-c" , "ls && ./tmp/main.sh"]
The error -
START RequestId: 8d689260-e500-45d7-aac8-ae260834ed96 Version: $LATEST
/bin/sh: ./tmp/main.sh: No such file or directory
/bin/sh: ./tmp/main.sh: No such file or directory
END RequestId: 8d689260-e500-45d7-aac8-ae260834ed96
REPORT RequestId: 8d689260-e500-45d7-aac8-ae260834ed96 Duration: 58.29 ms Billed Duration: 59 ms Memory Size: 128 MB Max Memory Used: 3 MB
RequestId: 8d689260-e500-45d7-aac8-ae260834ed96 Error: Runtime exited with error: exit status 127
Runtime.ExitError
Here how i did it to Run A C++ over a bash script :
#Pulling the node image from the AWS WCR PUBLIC docker hub.
FROM public.ecr.aws/lambda/provided:al2.2022.10.11.10
#Setting the working directory to /home.
WORKDIR ${LAMBDA_RUNTIME_DIR}
#Copying the contents of the current directory to the working directory.
COPY . .
#This is installing ffmpeg on the container.
RUN yum update -y
# Install sudo, wget and openssl, which is required for building CMake
RUN yum install sudo wget openssl-devel -y
# Install development tools
RUN sudo yum groupinstall "Development Tools" -y
# Download, build and install cmake
RUN yum install -y make
#RUN wget https://github.com/Kitware/CMake/releases/download/v3.22.3/cmake-3.22.3.tar.gz && tar -zxvf cmake-3.22.3.tar.gz && cd ./cmake-3.22.3 && ./bootstrap && make && sudo make install
RUN yum -y install gcc-c++ libcurl-devel cmake3 git
RUN ln -s /usr/bin/cmake3 /usr/bin/cmake
RUN ln -s /usr/bin/ctest3 /usr/bin/ctest
RUN ln -s /usr/bin/cpack3 /usr/bin/cpack
# get cmake versin
RUN cmake --version
RUN echo $(cmake --version)
#This is installing the nodejs and npm on the container.
RUN ./build.sh
RUN chmod 755 run.sh bootstrap
#This is running the nodejs application.
CMD [ "run.sh" ]
You will need a bootstrap file in the root directory : (FROM DOC)
#!/bin/sh
set -euo pipefail
# Initialization - load function handler
source $LAMBDA_RUNTIME_DIR/"$(echo $_HANDLER | cut -d. -f1).sh"
# Processing
while true
do
HEADERS="$(mktemp)"
# Get an event. The HTTP request will block until one is received
EVENT_DATA=$(curl -sS -LD "$HEADERS" -X GET "http://${AWS_LAMBDA_RUNTIME_API}/2018-06-01/runtime/invocation/next")
# Extract request ID by scraping response headers received above
REQUEST_ID=$(grep -Fi Lambda-Runtime-Aws-Request-Id "$HEADERS" | tr -d '[:space:]' | cut -d: -f2)
# Run the handler function from the script
RESPONSE=$($(echo "$_HANDLER" | cut -d. -f2) "$EVENT_DATA")
# Send the response
curl -X POST "http://${AWS_LAMBDA_RUNTIME_API}/2018-06-01/runtime/invocation/$REQUEST_ID/response" -d "$RESPONSE"
done
I am on ubuntu 20.04 I installed docker using sudo snap install docker now when I run directly from the terminal (terminal installed with ubuntu) docker command it works fine but when I execute a .sh script from the terminal using either bash ./script.sh or ./script.sh I am getting an error docker: command not found.
This is the script:
#!/bin/bash
source $(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/env.sh
docker run -e "NODE_ENV=dev" -it --rm --name my-npm-2 -v $PROJECT_HOME/code:/var/www/html/code -w /var/www/html/code node:14 npm install
docker run -e "NODE_ENV=dev" -it --rm --name my-npm -v $PROJECT_HOME/code/web:/var/www/html/code/web -w /var/www/html/code/web node:14 npm install
$SCRIPT_HOME/buildjs_dev.sh
docker exec project_php sudo php -d memory_limit=-1 /usr/local/bin/composer install --working-dir=/var/www/html/code
docker exec project_php chown -R www-data:www-data /var/www/html/code/var/cache
docker exec project_php chown -R www-data:www-data /var/www/html/code/var/log
I am new to linux in general and I don't know if the problem is with the script itself or why isn't it recognizing docker?
You are defining a source file at the start of your script which might be changing the PATH variable. Try by either commenting the source line or calling the docker command with full path.
I am trying to run a container (hello-world) as a sibling from another container (dev).
But, container script is not able to access "Docker". I am getting
Docker not found error
Here is what I am doing: dev Dockerfile downloads the docker image Like
ENV DOCKER_VERSION=19.03.8
RUN curl -sfL -o docker.tgz
"https://download.docker.com/linux/static/stable/x86_64/docker-${DOCKER_VERSION}.tgz" && \
tar -xzf docker.tgz docker/docker --strip=1 --directory /usr/local/bin && \
rm docker.tgz
RUN ["chmod","+x","./script.sh"]
ENTRYPOINT ["sh","./script.sh"]
script.sh is:
#!/bin/bash
docker run hello-world
Docker Build command:
docker build -t dev .
Docker run command:
docker run -v /var/run/docker.sock:/var/run/docker.sock <container_image>
I am trying to build a container using docker file which has some statements to execute as below:
# Create folder for caching files
RUN mkdir -p /Library/WebServer/docroot/publish
RUN chown -R daemon:daemon /Library/WebServer/docroot
I am using below command to build :
$ docker build --no-cache -t dispatcher-apache -f Dockerfile
I can see the below execution :
Step 7/10 : RUN mkdir -p /Library/WebServer/docroot/publish
---> Running in 4c8f7c3e2238
But the file isn't created on that location when I check.
-bash: cd: /Library/WebServer/docroot/publish: No such file or directory
However, if I create commands from terminal, it works fine.
Dockerfile :
FROM httpd:2.4
# Copy dispatcher module
RUN mkdir -p /private/libexec/apache2/
COPY ./apache2-modules/ /private/libexec/apache2/
RUN ln -s /private/libexec/apache2/dispatcher-apache2.4-4.2.3.so /private/libexec/apache2/mod_dispatcher.so
# Copy new apache dependencies
RUN mkdir -p /private/etc/apache2/conf
COPY ./publish/etc/httpd/conf.d/ /private/etc/apache2/conf/
# Create folder for caching files
RUN mkdir -p /Library/WebServer/docroot/publish
RUN chown -R daemon:daemon /Library/WebServer/docroot
# Create folder for log files
RUN mkdir -p /private/var/log/apache2
# Replace httpd.conf with enabled modules
COPY ./my-httpd.conf /usr/local/apache2/conf/httpd.conf
EDIT after some help:
Now after build, I started the container and below is the error
$ docker run -dit -e HOSTIP=$(ipconfig getifaddr en0) --rm --name dispatcher-app -p 8080:80 dispatcher-apache
6a032a50be846bef06027976b990da27bcb446c28d582cf6c3a4dc4ad4361e1c
$ docker exec -it dispatcher-app /bin/bash
Error: No such container: dispatcher-app
Any troubleshooting tips?