Differences

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--- docker:install_docker [2016/10/14 01:03] – peter
+++ docker:install_docker [2021/02/05 11:32] (current) – peter
@@ Line 11: / Line 11: @@
 Check that it's a 64Bit Kernel (x86_64).  Docker won't work without this.
+----
 Check the Ubuntu version.
@@ Line 19: / Line 20: @@
 The command shows that the Ubuntu version is 16.04.
+----
 It is recommended to update Ubuntu before you install new software. Run the following command to fetch the latest updates from the Ubuntu repository and install them.
-apt-get update
+<code bash>
-apt-get upgrade
+sudo apt update
+sudo upgrade
+</code>
+----
 Now install docker with the apt command:
 <code bash>
-apt-get install -y docker.io
+sudo apt install -y docker.io
 </code>
-Wait until the installation has been completed, then you can start Docker with the systemctl command:
+Wait until the installation has been completed.
+----
+===== Add your user to the docker group =====
+<code bash>
+sudo usermod -aG docker $USER
+</code>
+<WRAP info>
+**NOTE:**  This allows docker to be run without using sudo.
+Log out and log back in.
+</WRAP>
+----
+===== Verify that you can run docker commands without sudo =====
+<code bash>
+docker run hello-world
+</code>
+<WRAP info>
+**NOTE:**  If an error is seen such as **docker: Got permission denied while trying to connect to the Docker daemon socket**, then:
+<code bash>
+sudo chmod 666 /var/run/docker.sock
+</code>
+</WRAP>
+----
+Then you can start Docker with the systemctl command:
 <code bash>
 systemctl start docker
 </code>
+----
 Enable docker to run at system boot:
@@ Line 42: / Line 87: @@
 systemctl enable docker
 </code>
+----
 You might also want to check the docker version:
@@ Line 51: / Line 98: @@
 Show the currently installed Docker version.
-Now docker is installed in your system.  You can start making a container by downloading a Docker Image from the Docker Registry.
+Now docker is installed in your system.
+You can start making a container by downloading a Docker Image from the Docker Registry.