in order to make sure, that you are using the latest version for your :latest tag from your registry (e.g. docker hub) you need to also pull the latest tag again. in case it changed, the diff will be downloaded and started when you docker-compose up again. so this would be the way to go: … Read more
The docker compose (with a space) is a newer project to migrate compose to Go with the rest of the docker project. This is the v2 branch of the docker/compose repo. It’s been first introduced to Docker Desktop users, so docker users on Linux didn’t see the command. In addition to migrating to Go, it … Read more
You can log into the Docker container using the root user (ID = 0) instead of the provided default user when you use the -u option. E.g. docker exec -u 0 -it mycontainer bash root (id = 0) is the default user within a container. The image developer can create additional users. Those users are … Read more
The latest docker supports setting ulimits through the command line and the API. For instance, docker run takes –ulimit <type>=<soft>:<hard> and there can be as many of these as you like. So, for your nofile, an example would be –ulimit nofile=262144:262144
In order to copy a file from a container to the host, you can use the command docker cp <containerId>:/file/path/within/container /host/path/target Here’s an example: $ sudo docker cp goofy_roentgen:/out_read.jpg . Here goofy_roentgen is the container name I got from the following command: $ sudo docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 1b4ad9311e93 … Read more
Check the following Dockerfile, read the comments. It should run properly. # First, we need to make sure all dependencies are there. If you are using docker, then the important dependencies are already present on most node images. FROM node:8 # To run Headful mode, you will need to have a display, which is not … Read more
This error message… org.openqa.selenium.NoSuchSessionException: Unable to find session with ID: url\n Build info: version: ‘4.0.0-alpha-6’, revision: ‘5f43a29cfc’\n System info: host: ‘fca78c7f81e6’, ip: ‘172.28.0.3’, os.name: ‘Linux’, os.arch: ‘amd64’, os.version: ‘5.4.0-42-generic’, java.version: ‘1.8.0_252’\n Driver info: driver.version: unknown …implies that the ChromeDriver was unable to initiate/spawn a new Browsing Context i.e. Chrome Browser session which gets reflected in … Read more
This is not recommended at all. You will need to reverse engineer each image and copy the needed binaries/files into the combined image. The approach for that is to use docker multistage build: FROM apexits/ubuntu-oracle-jdk8-tomcat9 as tomcat FROM mysql:5.6.36 as mysql FROM elasticsearch:2.3.4 COPY –from=tomcat /…/tomcat-installtion …/tomcat-installation COPY –from=mysql /…/mysql-installtion …/mysql-installation … This approach is … Read more
I solved the same problem with below commands docker run –mount type=bind,source=”$(pwd)”/data,target=/home/data -it <name_of_container> Note “-it conainter_name” should be the last flags.
The right way: don’t use localhost. Instead use docker’s built in DNS networking and reference the containers by their service name. You shouldn’t even be setting the container name since that breaks scaling. The bad way: if you don’t want to use the docker networking feature, then you can switch to host networking, but that … Read more