1. After entering the inside of the container
Cat/etc/hosts
will display its own and (–link) soft connection to the container IP 2. Using Commands
Docker Inspect--format ' {{. Networksettings.ipaddress} ' OrDocker Inspect OrDocker inspect-f ' {range. networksettings.networks}}{{. Ipaddress}}{{end} ' container_name_or
When Docker creates a container, it uses the bridge network by default, assigning its own IP and not allowing itself to be specified.In the actual deployment, we need to specify the container IP, not allow its own IP, especially w
Docker assign static IP to the container for the specified physical network segmentPony 2015-02-06
theRead Docker Linux OS
The official information about the Network bridge and IP configuration is the address of the document: https://docs.docker.com/articles/networking/
1,
Objective
It is well known that bridge mode is docker default network setting, which assigns network Namespace to each container, sets IP, and connects the Docker container on one host to a virtual network bridge. Let's look at the way
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
Goal
This blog has launched a series of content about Docker, I believe you have a strong interest in the container, but if you dive in, you may find that the difference between the container and the virtual machine is still relatively large, especially in the network, but also need a lot of improvement, of course, with the launch of the
First, let's talk about Docker's network mode: When we use Docker run to create a container, we can use the--net option to specify the network mode of the container, with Docker having a total of 4 network modes:1:bridge mode,--net=bridge (default).This is the default setting for the Dokcer network. After installing
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 env
Docker officially recommends that we use port mapping to provide the services of the Docker container to the host or to other containers in the LAN. The general process is:1. The Docker process packets the port data to the Docker contain
Reprinted from: http://yangrong.blog.51cto.com/6945369/1582184
Docker container once started, the parameters can not be changed, production environment is the most common change is the port mapping, in order to solve this problem, then the first plan, this article lists two port planning scenarios, if there is a subsequent maintenance to increase the port mapping scenario, this paper also gives the dynamic
To create a bond interface, see:http://568273240.blog.51cto.com/2921150/1689541Create bridge interface directly on the configuration file, should Nmtui not succeed.# cat/etc/sysconfig/network-scripts/ifcfg-bond_connection_1Device=bond0Type=bondBonding_master=yesBootproto=noneDefroute=yesIpv4_failure_fatal=noIpv6init=noName= "Bond Connection 1"uuid=3787f827-24bd-4a2c-bd24-b9b085bcf002Onboot=yesbonding_opts= "updelay=0 resend_igmp=1 use_carrier=1 miimon=100 downdelay=0 xmit_hash_policy=0 primary_r
one more virtual machine layer to run on a non-Linux system. This will cause some problems that will not occur on Linux (IP address, hardware resources, file mappings, etc.), and because Linux-based, some Windows programs will be acclimatized, more generic than virtual machines.But the benefit is that the system resources are much lower. A computer that can only open several virtual machines generally can open dozens of
Docker_ssh/sbin/init (stuck in the current interface, re-open a new terminal, enter the container inside the sshd service)
Docker exec-it Af40bd07fa0f/bin/bash
Systemctl Restart Sshd.service
echo "123456" |passwd--stdin Root
Netstat-nplt|grep 22//View status
Yum Install-y openssh-clients
(6) Exit the container and copy the ~/.ssh/id_rsa.pub of the host to the ~
new container, map the host container port, and run the following command to enter the container shell:
# Docker run-it-P 81: 80 Ubuntu-nginx/bin/bash# Nginx
Here,-POption to list the host port to container port. The host port can be arbitrary, and the
the core of Docker, LXC uses a kernel-level namespace to isolate hosts and containers from each other. The user namespace separates the host from the user database of the container, which ensures that the root user of the container does not have root privileges on the host. The program namespace is only responsible for displaying and managing programs in the
Three major docker components: container and docker1. containers are another core concept of Docker.
Simply put, containers are one or more applications that run independently and Their runtime environments. The virtual machine can be understood as a simulation.A complete set of operating systems (including the running environment and other system environments) a
.
Network namespaces
Started with Linux 2.6.24 completed on Linux 2.6.29
Network-related system resources
Each container has its own network device, IP address, IP routing table,/proc/net directory, port number, and so on. This also allows the same application in multiple containers on a host to be bound to port 80 on the respective
performs in the background when it is created and started? This is described in the official document:
1. check whether the attached image exists locally. If it does not exist, it will be automatically downloaded from the remote repository. 2. create a container using the specified image. assign a file system to the container and mount a readable and writable layer on the image (the image should be read-on
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.