In front of our lab environment, only one Docker host container is running on this host. However, in a real environment, there will be multiple host containers that start, run, stop, and destroy related containers in these hosts, regardless of whether they are located in the same host.How can we manage such a multi-host environment efficiently?The first problem we faced was installing and configuring
environment.Docker example
Create a Dockerfile file under a folder with the following contents:
# Use an official Python runtime as a parent imageFROM python:2.7-slim# Set the working directory to /appWORKDIR /app# Copy the current directory contents into the container at /appADD . /app# Install any needed packages specified in requirements.txtRUN pip install --trusted-host pypi.python.org -r requirements.txt# Make port 80 available to
This article is from the "Knowledge Forest"
Three networks (Docker network LS) are default when the Docker service is successfully installed:
C:\users\zsl-pc>docker Network LS
network ID NAME DRIVER SCOPE
992344cd89fe Bridge Bridge local
06445f4f5774 host
environment information, such as the container host name, host information and domain name service file.
To see the read-write layer, the role of this layer is very large, docker of the mirror layer and the top two add up, the process within the Docker
Docker provides a simple command of the Operation container. But his command of the container does not belong to the system.
Because it is too simple, there must be a lot of deficiencies. For example, starting order, dependency checking, failure service recovery, and so on, all need a mature system service management software to complete.
This article uses Redis
Windows. The advent of Windows containers opens New horizons for the container of traditional Windows server-side applications, such as placing qlik sense servers in containers to instantly orchestrate clusters.Previously, Docker also launched a release version of Windows 10 that uses Hyper-V to run a Linux virtual machine as a container host. That's called
container ecosystem. So the Windows container is called Docker on Windows. The advent of Windows containers opens New horizons for the container of traditional Windows server-side applications, such as placing qlik sense servers in containers to instantly orchestrate clusters. Previously,
Docker PS command.Then use[Plain]View PlainCopy
Docker Attach container Name
You can enter the container interfaceThe container name can be obtained by[Plain]View PlainC
technology developed by the company to run cloud services on thousands of servers. It is written in the Go language. The Go language is a static programming language developed by Google based on C language and with loose syntax. After six to nine months of rapid development, the company hired a new CEO, joined the Linux Foundation, and changed the company name to Docker, it also announced that it would foc
Introduced inside Docker The image is running on the filesystem and the parameters are that it will never change. The container is an instance of the mirror runtime. when you're in Docker When you run a command on it, he runs the following actions:1. Check if the image exists2. if not, download3. Load the image run the action you wantView Local containers[[email
Docker basic commands for mirroring, containers, warehouses
Mirror
1. Get Mirror
$ Docker Pull dl.dockerpool.com:5000/ubuntu:14.04
Dl.dockerpool.com for registration server, 5000 for port number, Ubuntu for warehouse name, 14.04 for mirror and version number
2. View mirror Information
Lists all mirrors that are already present on the local host
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_id 3. You can consider writing a bash functi
d8990fec2141Ubuntu:latest "/bin/bash" 3 hours ago Exited ( 0) 3hours ago serene_payne
If you want to open this container, you need Docker start
Docker start 5f660cfdf9b1
In the start can add ID, you can also add the name of the con
that no files are added to the new layer of mirrors at this time, but the mirrored JSON file is updated to obtain this information when the container is launched through this image.
CMD ["./run.sh"]: Sets the default execution entry for the mirror, which also does not add any files to the new image, but updates the JSON file for the new image only on the basis of the previous layer of mirrored JSON files.
starting iptables NAT, the filter rule is not the same as the initial case of a single-machine Docker network.
101节点上初始网络driver类型:$docker network lsNETWORK ID NAME DRIVER47e57d6fdfe8 bridge bridge7c5715710e34 none null19cc2d0d76f7 host host
4. Create overlay network Net1 and
with Linux Bridge or Vxlan.
Instead, these implementations are compared to ground gas. Before we used the Docker container, we learned that Docker was isolated from the container network implemented by the Linux network namespace. When using Docker, there will be a Docker0
Docker host in different environments, including:
General Linux Operating System
Virtualization platform-VirtualBox, VMWare, Hyper-V
OpenStack
Public cloud-Amazon Web Services, Microsoft Azure, Google Compute Engine, Digital Ocean, and more
Docker Machine has a unified name for these environments: provider. For a particular provider,
Reprint please indicate the source: http://blog.csdn.net/dongdong9223/article/details/71425077This article comes from "I'm a fish on the hook" blog.
I've explained how to get in and out of Docker's container. Today, in Docker, the host and container (container) Copy the method of transferring files to each other. 1 co
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.