book

Docker Containers: Build and Deploy with Kubernetes, Flannel, Cockpit, and Atomic

by Christopher Negus

December 2015

Beginner to intermediate

320 pages

8h 22m

English

Addison-Wesley Professional

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Knowledge to Help You with DockerWhat This Book CoversPart I: Getting Going with ContainersPart II: Working with Individual ContainersPart III: Running Containers in Cloud EnvironmentsPart IV: Managing Multiple ContainersPart V: Developing Containers

Understanding Pros and Cons of Containerizing Applications...An Application Running Directly on a Host Computer...An Application Running Directly within a Virtual MachineUnderstanding the Upside of ContainersUnderstanding Challenges of Containerizing ApplicationsUnderstanding What Makes Up DockerThe Docker ProjectThe Docker Hub RegistryDocker Images and ContainersThe docker CommandApproaching ContainersSummary
Configuring a Standard Linux System for DockerConfiguring Ubuntu for DockerConfiguring Fedora for DockerConfiguring Red Hat Enterprise Linux for DockerConfiguring Other Operating Systems for DockerConfiguring a Container-Style Linux System for DockerConfiguring an Atomic Host for DockerConfiguring CoreOS for DockerSummary
Getting and Starting a Private Docker RegistrySetting Up a Docker Registry in FedoraSetting Up a Docker Registry in UbuntuConfiguring a Private Docker RegistryConfiguring the docker-registry PackageConfiguring the registry ContainerUnderstanding the Docker Image NamespaceSummary
Running Container Images InteractivelyStarting an Interactive Bash ShellPlaying Some Character-Based GamesRunning Administrative Commands Inside a ContainerRunning Containerized ServicesRunning a Containerized Web ServerLimiting Resources When Running Services in ContainersRunning Privileged ContainersSummary
Searching for ImagesSearching for Images with the docker CommandSearching for Images on Docker HubSearching Other Repositories for ImagesPulling Images from RegistriesSaving and Loading ImagesSummary
Assigning Names to ImagesAssigning Tags to ImagesAssigning Repository Names to ImagesAttaching a User Name to an ImageAttaching a Repository Name to an ImageSummary
Inspecting Images and ContainersInspecting an ImageInspecting Base Images with docker inspectInspecting Application Images with docker inspectLooking at the History of an ImageInspecting Running ContainersStart a Container to InspectInspect an Entire Container ConfigurationInspect Individual Container AttributesFinding More Ways to Look into ContainersUsing docker top to See Container ProcessesUsing docker attach to Interact with a Service Inside a ContainerUsing docker exec to Start a New Process in a Running ContainerUsing docker logs to See Container Process OutputUsing docker diff to See How a Container Has ChangedUsing docker cp to Copy Files from a ContainerSummary
Stopping and Starting a ContainerStopping and Starting a Detached ContainerStarting and Stopping an Interactive ContainerRestarting a ContainerSending Signals to a ContainerPausing and Unpausing ContainersWaiting for a Container’s Exit CodeRenaming a ContainerCreating a ContainerSummary
Managing Storage for a ContainerUsing Volumes from the HostData Volume ContainerWrite-Protecting a Bind MountMounting DevicesMounting SocketsStorage Strategies for the Docker HostAttaching External Storage to a Docker HostSummary
Expose Ports to Other ContainersMap Ports Outside the HostMap a Port from Linked ContainersConnect Containers on Different HostsAlternatives to the docker0 BridgeChanging Network Mode for a ContainerExamining Network OptionsChanging the Docker Network BridgeSummary
Making Space for Images and ContainersRemoving ImagesRemoving Individual ImagesRemoving Multiple ImagesRemoving ContainersRemoving Individual ContainersRemoving Multiple ContainersCleaning Up and Saving ContainersCleaning Up and Saving an Ubuntu ContainerCleaning Up and Saving a Fedora ContainerSummary
Doing a Simple docker buildSetting a Command to Execute from a DockerfileUsing the CMD InstructionUsing the ENTRYPOINT InstructionUsing the RUN InstructionAdding Files to an Image from a DockerfileExposing Ports from an Image within a DockerfileAssigning Environment Variables in a DockerfileAssigning Labels in a DockerfileUsing Other docker build Command OptionsTips for Building ContainersClean Up the ImageKeep Build Directory SmallKeep Containers SimpleManage How Caching Is DoneSummary
Using Super Privileged Containers in Atomic HostUnderstanding Super Privileged ContainersOpening Privileges to the HostAccessing the Host Process TableAccessing Host Network InterfacesAccessing Host Inter-Process CommunicationsAccessing Host File SystemsPreparing to Use Super Privileged ContainersUsing the atomic CommandInstalling an SPC Image with atomicGetting Information about an SPC Image with atomicRunning an SPC Image with atomicStopping and Restarting an SPC with atomicUpdating an SPC ImageUninstalling an SPC ImageTrying Some SPCsRunning the RHEL Tools SPCRunning the Logging (rsyslog) SPCRunning the System Monitor (sadc) SPCSummary
Understanding CockpitStarting with CockpitAdding Servers into CockpitWorking with Containers from CockpitAdding Container Images to CockpitRunning Images from CockpitWorking with Network Interfaces from CockpitConfiguring Storage from CockpitDoing Other Administrative Tasks in CockpitManaging Administrator Accounts in CockpitOpen a Terminal in CockpitSummary
Understanding KubernetesStarting with KubernetesSetting Up an All-in-One Kubernetes ConfigurationInstalling and Starting Up KubernetesStarting Up a Pod in KubernetesWorking with KubernetesSummary
Understanding Advanced Kubernetes FeaturesSetting Up a Kubernetes ClusterStep 1: Install LinuxStep 2: Set Up Kubernetes MasterStep 3: Set Up Kubernetes NodesStep 4: Set Up Networking with FlannelStarting Up Pods in a Kubernetes ClusterDeleting Replication Controllers, Services, and PodsSummary
Setting Up for Container DevelopmentChoosing a Container Development Environment for Red Hat SystemsContainer Development Environments from DockerUsing Good Development PracticesGathering or Excluding Files for a BuildTaking Advantage of LayersManaging Software Packages in a BuildLearning More about Building ContainersSummary
Examining Dockerfiles for Official Docker ImagesViewing a CentOS DockerfileViewing a Busybox DockerfileExamining Dockerfiles from Open Source ProjectsViewing a WordPress DockerfileViewing the MySQL DockerfileExamining Dockerfiles for Desktop and Personal UseViewing a Chrome DockerfileViewing a Firefox DockerfileSummary

Content preview from Docker Containers: Build and Deploy with Kubernetes, Flannel, Cockpit, and Atomic

Chapter 17. Developing Docker Containers

In This Chapter:

Create container development environments

Set up OpenShift Origin to develop containers

Use good container development practices

Application development in containers can be looked at as part of a larger transition to a Devops software development model. Containers give developers a greater level of control of the elements an application needs to run without having to think as much about ...

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