Update docs for Ubuntu 20.04

* Use 'apt install' command instead of legacy 'apt-get'

Change-Id: Idae8d325bce354fa3b4c5be412965122af8f1413

contrib/dev/vagrant/bootstrap.sh

@@ -35,8 +35,8 @@ function _ensure_lsb_release {
         return
     fi
 
-    if type apt-get >/dev/null 2>&1; then
-        apt-get -y install lsb-release
+    if type apt >/dev/null 2>&1; then
+        apt -y install lsb-release
     elif type yum >/dev/null 2>&1; then
         yum -y install redhat-lsb-core
     fi
@@ -79,8 +79,8 @@ function prep_work {
             systemctl stop ufw
             systemctl disable ufw
         fi
-        apt-get update
-        apt-get -y install python-mysqldb python-pip python-dev build-essential libssl-dev libffi-dev libxml2-dev libxslt-dev
+        apt update
+        apt -y install python-mysqldb python-pip python-dev build-essential libssl-dev libffi-dev libxml2-dev libxslt-dev
     else
         echo "Unsupported Distro: $DISTRO" 1>&2
         exit 1
@@ -94,7 +94,7 @@ function cleanup {
     if is_centos; then
         yum clean all
     elif is_ubuntu; then
-        apt-get clean
+        apt clean
     else
         echo "Unsupported Distro: $DISTRO" 1>&2
         exit 1
@@ -126,8 +126,8 @@ EOF
     elif is_ubuntu; then
         apt-key adv --keyserver hkp://pgp.mit.edu:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
         echo "deb https://apt.dockerproject.org/repo ubuntu-xenial main" > /etc/apt/sources.list.d/docker.list
-        apt-get update
-        apt-get -y install docker-engine
+        apt update
+        apt -y install docker-engine
         sed -i -r "s|(ExecStart)=(.+)|\1=/usr/bin/docker daemon --insecure-registry ${REGISTRY} --registry-mirror=http://${REGISTRY}|" /lib/systemd/system/docker.service
     else
         echo "Unsupported Distro: $DISTRO" 1>&2
@@ -217,7 +217,7 @@ function configure_operator {
     if is_centos; then
         yum -y install git mariadb
     elif is_ubuntu; then
-        apt-get -y install git mariadb-client selinux-utils
+        apt -y install git mariadb-client selinux-utils
     else
         echo "Unsupported Distro: $DISTRO" 1>&2
         exit 1

doc/source/contributor/vagrant-dev-env.rst

@@ -51,7 +51,7 @@ For Ubuntu 16.04 or later:
 
 .. code-block:: console
 
-   sudo apt-get install vagrant ruby-dev ruby-libvirt python-libvirt \
+   sudo apt install vagrant ruby-dev ruby-libvirt python-libvirt \
    qemu-utils qemu-kvm libvirt-dev nfs-kernel-server zlib1g-dev libpng12-dev \
    gcc git
 

doc/source/user/quickstart.rst

@@ -41,7 +41,7 @@ execution, which is described in
 
    .. code-block:: console
 
-      sudo apt-get update
+      sudo apt update
 
 #. Install Python build dependencies:
 
@@ -55,7 +55,7 @@ execution, which is described in
 
    .. code-block:: console
 
-      sudo apt-get install python3-dev libffi-dev gcc libssl-dev
+      sudo apt install python3-dev libffi-dev gcc libssl-dev
 
 Install dependencies using a virtual environment
 ------------------------------------------------
@@ -102,7 +102,7 @@ If installing Kolla Ansible in a virtual environment, skip this section.
 
    .. code-block:: console
 
-      sudo apt-get install python3-pip
+      sudo apt install python3-pip
 
 #. Ensure the latest version of pip is installed:
 
@@ -123,7 +123,7 @@ If installing Kolla Ansible in a virtual environment, skip this section.
 
    .. code-block:: console
 
-      sudo apt-get install ansible
+      sudo apt install ansible
 
    .. note::
 
@@ -314,7 +314,7 @@ than one node, edit ``multinode`` inventory:
       Distributions might not come with Python pre-installed. That will cause
       errors in the ``ping`` module. To quickly install Python with Ansible you
       can run: for Debian or Ubuntu:
-      ``ansible -i multinode all -m raw -a "apt-get -y install python3"``,
+      ``ansible -i multinode all -m raw -a "apt -y install python3"``,
       and for CentOS or RHEL:
       ``ansible -i multinode all -m raw -a "dnf -y install python3"``.