Implementation steps for enabling docker remote service link on cloud centos

Here we introduce the centos server with docker installed, and start the remote link service, so that we can use IDEA remote link, and we can package it into an image on the test server with one click (of course, we may play it ourselves, or on the test server, so don't mess around with other things to avoid running away). The installation of docker is not introduced here, and other articles have special introductions

Step 1: Configure Docker and enable remote access. The default port is 2375, which can also be changed to other ports.

Modify the /lib/systemd/system/docker.service file
vim /lib/systemd/system/docker.service
Add -H tcp://0.0.0.0:2375 -H unix://var/run/docker.sock after ExecStart (it is recommended to copy the second half directly, otherwise the restart will fail if it is written incorrectly)

Failure Chart

Reload the configuration file and restart Docker to make the configuration take effect.

#Reload the configuration file systemctl daemon-reload
#Restart the docker service systemctl restart docker

If Docker started normally before and failed to restart after changing the configuration, it is probably because the configuration was changed incorrectly.

Use the curl command to check whether it is enabled

 #curl download docker service information curl http://127.0.0.1:2375/info

If there is a return statement, it proves that the opening is successful

In addition, you need to configure the Tencent Cloud security group rules and open port 2375 in the inbound rules to enable remote access (similar to Alibaba Cloud)

Security group location: https://console.cloud.tencent.com/vpc/securitygroup?rid=1&rid=1

Add a new security group - add inbound rules (reference: https://cloud.tencent.com/document/product/213/39740)

Check whether the port can be accessed remotely. Enter the following command in your local browser: http://serverIPaddress:2375/info

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