add tutorial setup script to share/spack (#17705)

* add tutorial setup script to share/spack

* Add check for Ubuntu 18, fix xvda check, fix apt-get errors
  - now works on t2.micro, t2.small, and m instances
  - apt-get needs retries around it to work

Co-authored-by: Todd Gamblin <tgamblin@llnl.gov>

share/spack/setup-tutorial-env.sh

+# Copyright 2013-2020 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+###############################################################################
+#
+# This file is part of Spack and sets up the environment for the Spack tutorial
+# It is intended to be run on ubuntu-18.04 or an ubuntu-18.04 container or AWS
+# cloud9 environment
+#
+# Components:
+# 1. apt installs for packages used in the tutorial
+#     these include compilers and externals used by the tutorial and
+#     basic spack requirements like python and curl
+# 2. spack configuration files
+#     these set the default configuration for Spack to use x86_64 and suppress
+#     certain gpg warnings. The gpg warnings are not relevant for the tutorial
+#     and the default x86_64 architecture allows us to run the same tutorial on
+#     any x86_64 architecture without needing new binary packages.
+# 3. aws cloud9 configuration to expand available storage
+#     when we run on aws cloud9 we have to expand the storage from 10G to 30G
+#     because we install too much software for a default cloud9 instance
+###############################################################################
+
+####
+# Ensure we're on Ubuntu 18.04
+####
+
+if [ -f /etc/os-release ]; then
+    . /etc/os-release
+fi
+if [ x"$UBUNTU_CODENAME" != "xbionic" ]; then
+    echo "The tutorial setup script must be run on Ubuntu 18.04."
+    return 1 &>/dev/null || exit 1    # works if sourced or run
+fi
+
+####
+# Install packages needed for tutorial
+####
+
+# compilers, basic system components, externals
+# There are retries around these because apt fails frequently on new instances,
+# due to unattended updates running in the background and taking the lock.
+until sudo apt-get update -y; do
+    echo "==> apt-get update failed. retrying..."
+    sleep 5
+done
+
+until sudo apt-get install -y --no-install-recommends \
+    autoconf make python3 python3-pip \
+    build-essential ca-certificates curl git gnupg2 iproute2 emacs \
+    file openssh-server tcl unzip vim wget \
+    clang g++ g++-6 gcc gcc-6 gfortran gfortran-6 \
+    zlib1g zlib1g-dev mpich; do
+    echo "==> apt-get install failed. retrying..."
+    sleep 5
+done
+
+####
+# Spack configuration settings for tutorial
+####
+
+# create spack system config
+sudo mkdir -p /etc/spack
+
+# set default arch to x86_64
+sudo tee /etc/spack/packages.yaml << EOF > /dev/null
+packages:
+  all:
+    target: [x86_64]
+EOF
+
+# suppress gpg warnings
+sudo tee /etc/spack/config.yaml << EOF > /dev/null
+config:
+  suppress_gpg_warnings: true
+EOF
+
+####
+# AWS set volume size to at least 30G
+####
+
+# Hardcode the specified size to 30G
+SIZE=30
+
+# Get the ID of the environment host Amazon EC2 instance.
+INSTANCEID=$(curl http://169.254.169.254/latest/meta-data//instance-id)
+
+# Get the ID of the Amazon EBS volume associated with the instance.
+VOLUMEID=$(aws ec2 describe-instances \
+	       --instance-id $INSTANCEID \
+	       --query "Reservations[0].Instances[0].BlockDeviceMappings[0].Ebs.VolumeId" \
+	       --output text)
+
+# Resize the EBS volume.
+aws ec2 modify-volume --volume-id $VOLUMEID --size $SIZE
+
+# Wait for the resize to finish.
+while [ \
+	  "$(aws ec2 describe-volumes-modifications \
+    --volume-id $VOLUMEID \
+    --filters Name=modification-state,Values="optimizing","completed" \
+    --query "length(VolumesModifications)"\
+    --output text)" != "1" ]; do
+    sleep 1
+done
+
+if [ -e /dev/xvda1 ]
+then
+    # Rewrite the partition table so that the partition takes up all the space that it can.
+    sudo growpart /dev/xvda 1
+
+    # Expand the size of the file system.
+    sudo resize2fs /dev/xvda1
+
+else
+    # Rewrite the partition table so that the partition takes up all the space that it can.
+    sudo growpart /dev/nvme0n1 1
+
+    # Expand the size of the file system.
+    sudo resize2fs /dev/nvme0n1p1
+fi