Build the Turtlebot Robot Slam cruise map in the Ros container of the Docker platform
SLAM (simultaneous localization and mapping), also known as CML (Concurrent Mapping and localization), instant positioning and map building, or concurrent mapping and positioning. The problem can be described as: putting a robot in an unknown location in an unknown environment, whether there is a way for the robot to grad
Restart policy:Use the--restart parameter to set when using the Docker run.No-container does not restartOn-failure-container launch status non-0 o'clock restartAlways-restart all the Timeshttps://docs.docker.com/reference/commandline/cli/#restart-policiesRestart PoliciesUsing the --restart flag on Docker run you can sp
Once the Docker container is started, the parameters cannot be changed. The most common change in the production environment is the port mapping, in order to solve this problem, then first of all planning, this article listed two port planning scheme, if the subsequent maintenance in order to increase the port mapping scene, this paper also gives a dynamic port mapping expansion scheme.
1. Single IP multi-
There are two main ways of managing data in a container:
Data volume (volumes)
Data volume container (volumes dontainers)
Data volume
Use-V to mount a local directory into the container as a data volume.
[root@wls12c/]$ ls/b2b
backup prog_update wasStatus.log
[root@wls12c/]$ Docker run-d]--name=tomcat -v/b2b:/test-
first, the new and start the containerUsage:docker Run [OPTIONS] IMAGE [COMMAND] [ARG ...]650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/83/0D/wKioL1dp7qmCLz9VAAKYkvj7mGk419.jpg "title=" Qq20160622094845.jpg "alt=" Wkiol1dp7qmclz9vaakykvj7mgk419.jpg "/>The following command launches a bash terminal, which allows the user to interact with the meaning of some of these options, please refer to the help above:Docker Run-ti Jdeathe/centos-ssh/bin/bash650) this.width=650; "src=" Http://s5
When you deploy a Project Server, the Docker container is set to start automatically, in response to power outages and other conditions that affect access to normal Web projects.
When you use the Docker run to start the container, use the--restart parameter to set:
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1. Start a Docker container# docker Run-t -I Ubuntu/ruby:v1/bin/bash2, then in the container, install Openssh-server openssh-client# apt-get Install openssh-server openssh-client3. After completion, change the root password# passwd4. Exit the container and save the above cha
Aliyun's mirror services are well done, including the commonly used Debian (Ubuntu) and Redhat (CentOS) mirrors, the repo of all kinds of open-source software, and Docker's container mirrors, all copy one on a domestic server. Download speed is no longer limited by the big firewall you know. System and various types of open source software backup directly to see http://mirrors.aliyun.com/, the following alone Dock
The Docker container was used to set static IP addresses and communication between containers and containers, so there was not much to record.See an article on the internet today about setting up a static IP address. On their own in the actual situation. Yes, there's a pipework that can also be set.Operating system environment[Email protected]:~# cat/etc/issueubuntu 14.04.3 LTS \ \lHost (the system uses UBU
://192.168.56.105:31614/ Configure logon PermissionsDashboard SupportKubeconfigand theTokentwo kinds of authentication methods, in order to simplify the configuration, we pass the configuration filedashboard-admin.yamlgive admin permissions to the Dashboard default user. execute kubectl apply make it effective. now directly click on the login page skip can enter Dashboard. In the next section we will use Kubernetes Dashboard.Books:1. 5 minutes a day kubernetes " https://item.jd.co
Using the-v parameter in Docker Practice 2 links the host to the relevant directory in the container (mount), so we can use this channel to put the data we want to copy with each other, so that we can use the CP command to copy the file.In addition to this approach, we can also use different commands to copy the data separately.Copy data from a container like a h
adds a network card for 10.10.10.0 network segment FLANNEL.1DOCKER02 host adds a network card for 10.10.58.0 network segment FLANNEL.1Can see no netns, from the above information can be obtained, flannel is currently a virtual network cardYou can see that we are only doing "Install etcd--Install Flannel--flannel Association ETCD", but the Docker host does not have a flannel network associated with it, do the following:Specify Flannel_subnet segment a
Build a kafka cluster environment in a docker container
Kafka cluster management and status saving are implemented through zookeeper. Therefore, you must first set up a zookeeper cluster.
Zookeeper cluster Construction
I. software environment:
The zookeeper cluster requires more than half of the nodes to survive for external services. Therefore, the number of servers should be 2 * N + 1. Here, three nodes
current cluster is to execute kubeadm reset it on each node . You can then initialize the cluster as we did in the "Initializing Master" section of the "Deploying Kubernetes Cluster" chapter earlier. Kubeadm Init--apiserver-advertise-address 192.168.56.105--pod-network-cidr=10.244.0.0/16then follow the documentation https://kubernetes.io/docs/setup/independent/create-cluster-kubeadm/ install Canal. The documentation lists the installation methods for various network scenarios:Execute the follow
Tags: docker art default exclude row var statement show restart1. Download MySQL image# docker Pull MySQL2. Start the MySQL container# docker run-itd-v/data:/var/lib/mysql-p 33060:3306--name mysqldb MySQL BashWarning:ipv4 forwarding is disabled. Networking won't work.25d047a99917c6420412f36e1d0e2e6af38fc86539b2184d1ea7
Docker Container Memory Monitoring
Linux Memory Monitoring
To understand how the Docker container memory is computed, first understand the concepts associated with memory in Linux.
Use the free command to view current memory usage.
[Root@localhost ~]$ free
total used free shared buffers ca
find in the target folder that you just created the war package for the project,
Next, deploy to the JBoss or tomact container,
7, copy just get the war package, to your installation of the JBoss directory, to the Standalone->deplouments directory, Start the JBoss service (Standalone.bat), and you can see if there is more than one in this directory, the project name. War.deployed. File, if the (undeployed)
This year's technology field is focused on the cloud infrastructure that people have enthusiastically discussed. docker, which was the first to become the most popular open-source Cloud project as an ultra-light quantum container application, is second only to openstack, VMWare, Google, and Microsoft have cooperated with docker.
Tomorrow's star of cloud computing
1. From container to host)
Use the docker CP command
docker cp
2. From host to iner
Get container name or short container ID:Docker PS
Get full container IDDocker inspect-F' {. ID} 'SHORT_CONTAINER_ID-or-CONTAINER_NAME
Cop
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