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All Projects → rancher → Install Docker

rancher / Install Docker

Scripts for docker-machine to install a particular docker version

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install-docker

Scripts for docker-machine to install a particular docker version

Hosted at https://releases.rancher.com/install-docker/x.y[.z].sh, e.g.:

Add new docker release

This script is based on public docker-install release, https://github.com/docker/docker-install . Docker-install script is built from the docker repo, and it's patched to generate a docker install script for a concrete docker version. The patch is also adding support for oracle and rancheros distros due to not supported on the original script.

To add a new docker installer version, follow these steps:

Create a docker version folder under pkg/<DOCKER_VERSION>, version should follow semver format. Ex: pkg/20.10.2/
Under docker version folder:
- Download docker-install version from its repo curl -Lsk http://get.docker.com/ -o <DOCKER_VERSION>.orig.sh and make a copy cp -p <DOCKER_VERSION>.orig.sh <DOCKER_VERSION>.sh
- Make all the needed changes at <DOCKER_VERSION>.sh. Don't remove SCRIPT_COMMIT_SHA var definition
- Create diff file, diff -uNr <DOCKER_VERSION>.orig.sh <DOCKER_VERSION>.sh > pkg/<DOCKER_VERSION>/<DOCKER_VERSION>.diff and remove . Ex: pkg/20.10.2/20.10.2.diff

 diff -uNr 20.10.2.orig.sh 20.10.2.sh
--- 20.10.2.orig.sh 2021-01-28 23:47:45.000000000 +0100
+++ 20.10.2.sh  2021-01-28 23:53:21.000000000 +0100
@@ -21,26 +21,11 @@
 # the script was uploaded (Should only be modified by upload job):
 SCRIPT_COMMIT_SHA="3d8fe77c2c46c5b7571f94b42793905e5b3e42e4"
 
-
-# The channel to install from:
-#   * nightly
-#   * test
-#   * stable
-#   * edge (deprecated)
-DEFAULT_CHANNEL_VALUE="stable"
-if [ -z "$CHANNEL" ]; then
- CHANNEL=$DEFAULT_CHANNEL_VALUE
-fi
-
-DEFAULT_DOWNLOAD_URL="https://download.docker.com"
-if [ -z "$DOWNLOAD_URL" ]; then
- DOWNLOAD_URL=$DEFAULT_DOWNLOAD_URL
-fi
-
-DEFAULT_REPO_FILE="docker-ce.repo"
-if [ -z "$REPO_FILE" ]; then
- REPO_FILE="$DEFAULT_REPO_FILE"
-fi
+CHANNEL="stable"
+DOWNLOAD_URL="https://download.docker.com"
+REPO_FILE="docker-ce.repo"
+VERSION=20.10.2
+DIND_TEST_WAIT=${DIND_TEST_WAIT:-3s}  # Wait time until docker start at dind test env
 
 mirror=''
 DRY_RUN=${DRY_RUN:-}
@@ -69,6 +54,18 @@
    ;;
 esac
 
+start_docker() {
+ if [ ! -z $DIND_TEST ]; then
+   # Starting dockerd manually due to dind env is not using systemd
+   dockerd &
+   sleep $DIND_TEST_WAIT
+ elif [ -d '/run/systemd/system' ] ; then
+   $sh_c 'systemctl start docker'
+ else
+   $sh_c 'service docker start'
+ fi
+}
+
 command_exists() {
  command -v "[email protected]" > /dev/null 2>&1
 }
@@ -329,11 +326,20 @@
    ;;
 
    centos|rhel)
+     # installing centos packages
+     lsb_dist="centos"
      if [ -z "$dist_version" ] && [ -r /etc/os-release ]; then
        dist_version="$(. /etc/os-release && echo "$VERSION_ID")"
      fi
    ;;
 
+   oracleserver)
+     # installing centos packages
+     lsb_dist="centos"
+     # need to switch lsb_dist to match yum repo URL
+     dist_version="$(rpm -q --whatprovides redhat-release --queryformat "%{VERSION}\n" | sed 's/\/.*//' | sed 's/\..*//' | sed 's/Server*//')"
+   ;;
+
    *)
      if command_exists lsb_release; then
        dist_version="$(lsb_release --release | cut -f2)"
@@ -404,6 +410,7 @@
          $sh_c "apt-get install -y -qq --no-install-recommends docker-ce-cli=$cli_pkg_version >/dev/null"
        fi
        $sh_c "apt-get install -y -qq --no-install-recommends docker-ce$pkg_version >/dev/null"
+       start_docker
      )
      echo_docker_as_nonroot
      exit 0
@@ -474,10 +481,25 @@
          $sh_c "$pkg_manager install -y -q docker-ce-cli-$cli_pkg_version"
        fi
        $sh_c "$pkg_manager install -y -q docker-ce$pkg_version"
+       if ! command_exists iptables; then
+         $sh_c "$pkg_manager install -y -q iptables"
+       fi
+       start_docker
      )
      echo_docker_as_nonroot
      exit 0
      ;;
+   rancheros)
+     (
+     set -x
+     $sh_c "sleep 3;ros engine list --update"
+     engine_version="$(sudo ros engine list | awk '{print $2}' | grep ${docker_version} | tail -n 1)"
+     if [ "$engine_version" != "" ]; then
+       $sh_c "ros engine switch -f $engine_version"
+     fi
+     )
+     exit 0
+     ;;
    *)
      if [ -z "$lsb_dist" ]; then
        if is_darwin; then

Create shell script file pkg/<DOCKER_VERSION>/config.sh. To assure the patch would be applied to the same origin script version, this file should contain DOCKER_GIT_COMMIT var equal to SCRIPT_COMMIT_SHA got on first steps. Ex: pkg/20.10.2/config.sh

#!/bin/sh

DOCKER_GIT_COMMIT="3d8fe77c2c46c5b7571f94b42793905e5b3e42e4"

Generate the docker version install script dist/<DOCKER_VERSION>.sh executing make generate. This command will generate docker version install script for every pkg/<DOCKER_VERSION> folder, if it doesn't exist and pkg/<DOCKER_VERSION>/<DOCKER_VERSION>.diff and pkg/<DOCKER_VERSION>/config.sh files exist. This command will also shows an info message for docker install scripts that were generated with older DOCKER_GIT_COMMIT, so they could be updated with latest released DOCKER_GIT_COMMIT. git and curl commands are required. Ex: Will generate dist/20.10.2.sh.
Under dist/ create/update the proper docker install script symlink <DOCKER_MAJOR>.<DOCKER_MINOR>.sh, to the generated script. Ex: ln -s 20.10.2.sh 20.10.sh
Define and execute tests, make test. See above for more info
Commit changes and submit PR

Test releases

The repo contains some tests to check if the docker install scripts are working fine on defined distros and versions. The tests are executed within a dind env for every pkg/<DOCKER_VERSION> folder, using the generated scripts to install and run docker on defined distros and versions.

make test

There is the default distros and versions definition to test:

TEST_OS_IMAGE_NAME=(ubuntu centos debian)
TEST_OS_IMAGE_TAG[0]="16.04 18.04 20.04"
TEST_OS_IMAGE_TAG[1]="centos7 centos8"
TEST_OS_IMAGE_TAG[2]="10"

The test definition can be overwritten on every docker version folder, using the shell script file pkg/<DOCKER_VERSION>/config.sh

#!/bin/sh

DOCKER_GIT_COMMIT="3d8fe77c2c46c5b7571f94b42793905e5b3e42e4"

TEST_OS_IMAGE_NAME=(ubuntu centos debian)
TEST_OS_IMAGE_TAG[0]="20.04"
TEST_OS_IMAGE_TAG[1]="centos7"
TEST_OS_IMAGE_TAG[2]="10"

Tip As dind test env doesn't use systemd, dockerd is started manually. The default timeout waiting until dockerd starts, is defined by env variable DIND_TEST_WAIT=3s. It can be overwritten on execution time if required, DIND_TEST_WAIT=5s make test

Sync releases

make sync

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