rather than emitting text, let's use the package manager

https://docs.docker.com/engine/installation/linux/docker-ce/debian/#install-docker-ce-1
2017-11-24 10:16:00 +11:00
parent d58f785de1
commit 1beed2d6f6
1 changed files with 4 additions and 3 deletions
@@ -91,9 +91,10 @@ or install Docker CE 17.09 from Docker's repositories for Ubuntu or Debian:
 ```bash
 apt-get update && apt-get install -y curl apt-transport-https
 curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add -
-cat <<EOF >/etc/apt/sources.list.d/docker.list
-deb https://download.docker.com/linux/$(lsb_release -si | tr '[:upper:]' '[:lower:]') $(lsb_release -cs) stable
-EOF
+add-apt-repository \
+   "deb [arch=amd64] https://download.docker.com/linux/$(. /etc/os-release; echo "$ID") \
+   $(lsb_release -cs) \
+   stable"
 apt-get update && apt-get install -y docker-ce=$(apt-cache madison docker-ce | grep 17.09 | head -1 | awk '{print $3}')
 ```