http://192.168.180.206:8001/ 2026-05-13T00:24:02+00:00 http://192.168.180.206:8001/ http://192.168.180.206:8001/_media/wiki:dokuwiki.svg text/html 2023-01-22T19:05:41+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/linux:docker:apparmor?rev=1674414341&do=diff apparmor profile Issue No network connectivity from container. Journal shows: audit: type=1400 audit(1634036792.582:254): apparmor="DENIED" operation="create" profile="docker-default" pid=32133 comm="ping" family="inet" sock_type="dgram" protocol=17 requested_mask="create" denied_mask="create" text/html 2022-09-12T19:49:50+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/linux:docker:daemon?rev=1663012190&do=diff dockerd dockerd daemon.json { “data-root”: “/new/path/docker”, "storage-driver": "overlay2" } text/html 2025-09-30T17:29:21+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/linux:docker:dockercompose?rev=1759253361&do=diff compose <https://docs.docker.com/compose/gettingstarted/> docker-compose is running according description file docker-compose.yml in current directory. * docker-compose up - Build, (re)create, start and attach to containers. * docker-compose up -d - Build, (re)create, start and attach to containers. Detached mode (background) text/html 2021-05-16T16:02:17+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/linux:docker:dockerfile?rev=1621180937&do=diff Dockerfile Build process Docker process Dockerfile stepping through the instructions. <https://docs.docker.com/engine/userguide/eng-image/dockerfile_best-practices/#/build-cache> FROM ENTRYPOINT RUN ADD <https://docs.docker.com/engine/reference/builder/#/add> * Copy new files, directories or URLs and adds them to filesystem of image * All new files and directories are created with a UID and GID of 0. text/html 2023-07-14T13:57:59+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/linux:docker:host_access?rev=1689343079&do=diff Host access from container By default it is possible to access host services on host external interfaces (not loopback). Host is available under IP address of Docker network, so dynamic mapping is needed (address can change). /etc/hosts Docker can automatically generate text/html 2023-02-21T10:38:52+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/linux:docker:image?rev=1676975932&do=diff docker image create image FS from directory <https://docs.docker.com/build/building/base-images/> tar -C my_rootfs_dir -c . | docker image import - my_new_rootfs_image text/html 2020-06-12T17:21:46+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/linux:docker:kubernetes?rev=1591982506&do=diff Kubernetes Installation * Install docker * Test if docker is running * Add Kubernetes repositury * sudo apt install kubeadm kubectl kubelet On master node kubeadm init text/html 2026-03-01T16:35:48+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/linux:docker:log?rev=1772382948&do=diff Logging Prevent disc space flooding with container logs: * Docker Log Rotation Configuration Guide | SigNoz * Strategies for Rotating Docker Logs * How To Manage Docker Logfiles with Logrotate * Rotating nginx logs using Docker Compose and logrotate /var/lib/docker/containers/*/*.log { rotate 4 weekly compress size=100M missingok delaycompress copytruncate } apache logs /var/log/apache2/*.log { weekly missingok rotate 50 dateext compress de… text/html 2020-03-20T19:13:47+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/linux:docker:network?rev=1584731627&do=diff Networking <https://developers.redhat.com/blog/2018/10/22/introduction-to-linux-interfaces-for-virtual-networking/> In default docker networking: * traffic from container to world is NATed. * incoming traffic for mapped port is handled by docker-proxy process Setup default subnet for containers By default docker try to choose not conflicting addressing scheme: text/html 2020-05-07T07:06:33+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/linux:docker:scripts?rev=1588835193&do=diff Scripts remove image with dependend childs Error: “Can’t delete docker image with dependent child images” recursive_remove_image() { for image in $(docker images --quiet --filter "since=${1}") do if [ $(docker history --quiet ${image} | grep ${1}) ] then recursive_remove_image "${image}" fi done echo "Removing: ${1}" docker rmi -f ${1} } text/html 2022-09-12T19:36:33+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/linux:docker:storage?rev=1663011393&do=diff Storage <https://storidge.com/> <https://storidge.com/blog/setup-swarm-cluster-persistent-storage-10-minutes/> text/html 2023-05-17T08:29:20+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/linux:docker:ubuntu12?rev=1684312160&do=diff Ubuntu 12 Install docker on Ubuntu Precise Ubuntu 12 LTS apt-key adv --keyserver hkp://pgp.mit.edu:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D sh -c "echo deb https://apt.dockerproject.org/repo ubuntu-precise main \ > /etc/apt/sources.list.d/docker.list" apt-get purge lxc-docker apt-get update apt-get install docker-engine sudo usermod -aG docker username text/html 2023-05-17T08:29:32+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/linux:docker:ubuntu16?rev=1684312172&do=diff Ubuntu 16 To get latest Docker 18: sudo apt install apt-transport-https ca-certificates curl software-properties-common curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add - add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable" sudo apt update apt-cache policy docker-ce text/html 2025-09-29T18:22:55+00:00 Anonymous (anonymous@undisclosed.example.com) http://192.168.180.206:8001/linux:docker:volumes?rev=1759170175&do=diff Volumes <https://docs.docker.com/engine/tutorials/dockervolumes/> Data volumes are designed to persist data, independent of the container’s life cycle. Docker therefore never automatically delete volumes when you remove a container, nor will it “garbage collect” volumes that are no longer referenced by a container. A Docker data volume persists after a container is deleted.