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Fix function name to be compatible with bash #445

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Fix function name to be compatible with bash #445

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90 changes: 40 additions & 50 deletions install.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -11,24 +11,22 @@ set -e -o pipefail
CONFIG_ENV_ONLY=${CONFIG_ENV_ONLY:=false}

# Only get the version number if installing a release version
[ $CONFIG_ENV_ONLY = false ] && \
VERSION=$(curl -s https://api.github.com/repos/redhat-et/microshift/releases | grep tag_name | head -n 1 | cut -d '"' -f 4)
[ $CONFIG_ENV_ONLY = false ] &&
VERSION=$(curl -s https://api.github.com/repos/redhat-et/microshift/releases | grep tag_name | head -n 1 | cut -d '"' -f 4)

# Function to get Linux distribution
get_distro() {
DISTRO=$(egrep '^(ID)=' /etc/os-release| sed 's/"//g' | cut -f2 -d"=")
if [[ $DISTRO != @(rhel|fedora|centos|ubuntu) ]]
then
echo "This Linux distro is not supported by the install script"
exit 1
DISTRO=$(egrep '^(ID)=' /etc/os-release | sed 's/"//g' | cut -f2 -d"=")
if [[ $DISTRO != @(rhel|fedora|centos|ubuntu) ]]; then
echo "This Linux distro is not supported by the install script"
exit 1
fi
}

# Function to get system architecture
get_arch() {
ARCH=$(uname -m | sed "s/x86_64/amd64/" | sed "s/aarch64/arm64/")
if [[ $ARCH != @(amd64|arm64) ]]
then
if [[ $ARCH != @(amd64|arm64) ]]; then
printf "arch %s unsupported" "$ARCH" >&2
exit 1
fi
Expand All @@ -40,11 +38,11 @@ get_os_version() {
}

# Function to check system prerequisites
pre-check-installation(){
pre_check_installation() {
mem_threshold='1024'
disk_threshold='2048'
numCPU_threshold='2'

numCPU=$(nproc --all)
if [ $numCPU -lt $numCPU_threshold ]; then
echo "Warning: Pre-Install check number of CPUs cores less than recommended number: $numCPU_threshold"
Expand All @@ -53,16 +51,14 @@ pre-check-installation(){
fi

mem_free=$(free -m | grep "Mem" | awk '{print $4+$6}')
if [ $mem_free -lt $mem_threshold ]
then
if [ $mem_free -lt $mem_threshold ]; then
echo "Warning: Pre-Install check MEM usage less than recommended number: $mem_threshold"
#uncomment this line to exit on error. By now informative only
#exit 1
fi

disk_free=$(df -m | grep /$ | grep -v -E '(tmp|boot)' | awk '{print $4}')
if [ $disk_free -lt $disk_threshold ]
then
if [ $disk_free -lt $disk_threshold ]; then
echo "Warning: Pre-Install check DISK usage less than recommended number: $disk_threshold"
#uncomment this line to exit on error. By now informative only
#exit 1
Expand All @@ -75,17 +71,15 @@ register_subs() {
REPO="rhocp-4.7-for-rhel-8-x86_64-rpms"
# Check subscription status and register if not
STATUS=$(sudo subscription-manager status | awk '/Overall Status/ { print $3 }')
if [[ $STATUS != "Current" ]]
then
sudo subscription-manager register --auto-attach < /dev/tty
if [[ $STATUS != "Current" ]]; then
sudo subscription-manager register --auto-attach </dev/tty
POOL=$(sudo subscription-manager list --available --matches '*OpenShift' | grep Pool | head -n1 | awk -F: '{print $2}' | tr -d ' ')
sudo subscription-manager attach --pool $POOL
sudo subscription-manager config --rhsm.manage_repos=1
fi
set -e -o pipefail
# Check if already subscribed to the proper repository
if ! sudo subscription-manager repos --list-enabled | grep -q ${REPO}
then
if ! sudo subscription-manager repos --list-enabled | grep -q ${REPO}; then
sudo subscription-manager repos --enable=${REPO}
fi
}
Expand All @@ -106,7 +100,7 @@ build_selinux_policy() {
sudo mkdir -p /var/hpvolumes
sudo semodule -i /tmp/microshift.pp
sudo restorecon -v /var/hpvolumes
sudo restorecon -vR /var/lib/kubelet/pods
sudo restorecon -vR /var/lib/kubelet/pods
fi
}

Expand All @@ -126,7 +120,7 @@ install_dependencies() {
}

# Establish Iptables rules
establish_firewall () {
establish_firewall() {
sudo systemctl enable firewalld --now
sudo firewall-cmd --zone=public --permanent --add-port=6443/tcp
sudo firewall-cmd --zone=public --permanent --add-port=30000-32767/tcp
Expand All @@ -140,30 +134,29 @@ establish_firewall () {
sudo firewall-cmd --reload
}


# Install CRI-O depending on the distro
install_crio() {
case $DISTRO in
"fedora")
"fedora")
sudo dnf module -y enable cri-o:1.20
sudo dnf install -y cri-o cri-tools
;;
"rhel")
;;
"rhel")
sudo dnf install cri-o cri-tools -y
;;
"centos")
;;
"centos")
CRIOVERSION=1.20
OS=CentOS_8_Stream
sudo curl -L -o /etc/yum.repos.d/devel:kubic:libcontainers:stable.repo https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/$OS/devel:kubic:libcontainers:stable.repo
sudo curl -L -o /etc/yum.repos.d/devel:kubic:libcontainers:stable:cri-o:$CRIOVERSION.repo https://download.opensuse.org/repositories/devel:kubic:libcontainers:stable:cri-o:$CRIOVERSION/$OS/devel:kubic:libcontainers:stable:cri-o:$CRIOVERSION.repo
sudo dnf install -y cri-o cri-tools
;;
"ubuntu")
;;
"ubuntu")
CRIOVERSION=1.20
OS=xUbuntu_$OS_VERSION
KEYRINGS_DIR=/usr/share/keyrings
echo "deb [signed-by=$KEYRINGS_DIR/libcontainers-archive-keyring.gpg] https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/$OS/ /" | sudo tee /etc/apt/sources.list.d/devel:kubic:libcontainers:stable.list > /dev/null
echo "deb [signed-by=$KEYRINGS_DIR/libcontainers-crio-archive-keyring.gpg] http://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable:/cri-o:/$CRIOVERSION/$OS/ /" | sudo tee /etc/apt/sources.list.d/devel:kubic:libcontainers:stable:cri-o:$CRIOVERSION.list > /dev/null
echo "deb [signed-by=$KEYRINGS_DIR/libcontainers-archive-keyring.gpg] https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/$OS/ /" | sudo tee /etc/apt/sources.list.d/devel:kubic:libcontainers:stable.list >/dev/null
echo "deb [signed-by=$KEYRINGS_DIR/libcontainers-crio-archive-keyring.gpg] http://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable:/cri-o:/$CRIOVERSION/$OS/ /" | sudo tee /etc/apt/sources.list.d/devel:kubic:libcontainers:stable:cri-o:$CRIOVERSION.list >/dev/null

sudo mkdir -p $KEYRINGS_DIR
curl -L https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/$OS/Release.key | sudo gpg --dearmor -o $KEYRINGS_DIR/libcontainers-archive-keyring.gpg
Expand All @@ -172,11 +165,10 @@ install_crio() {
sudo apt-get update -y
# Vagrant Ubuntu VMs don't provide containernetworking-plugins by default
sudo apt-get install -y cri-o cri-o-runc cri-tools containernetworking-plugins
;;
;;
esac
}


# CRI-O config to match MicroShift networking values
crio_conf() {
sudo sh -c 'cat << EOF > /etc/cni/net.d/100-crio-bridge.conf
Expand All @@ -199,10 +191,10 @@ crio_conf() {
}
}
EOF'
if [ "$DISTRO" == "rhel" ]; then
sudo sed -i 's|/usr/libexec/crio/conmon|/usr/bin/conmon|' /etc/crio/crio.conf
fi

if [ "$DISTRO" == "rhel" ]; then
sudo sed -i 's|/usr/libexec/crio/conmon|/usr/bin/conmon|' /etc/crio/crio.conf
fi
}

# Start CRI-O
Expand All @@ -226,14 +218,14 @@ get_microshift() {
BIN_SHA="$(sha256sum microshift-linux-$ARCH | awk '{print $1}')"
KNOWN_SHA="$(grep "microshift-linux-$ARCH" release.sha256 | awk '{print $1}')"

if [[ "$BIN_SHA" != "$KNOWN_SHA" ]]; then
if [[ "$BIN_SHA" != "$KNOWN_SHA" ]]; then
echo "SHA256 checksum failed" && exit 1
fi

sudo chmod +x microshift-linux-$ARCH
sudo mv microshift-linux-$ARCH /usr/local/bin/microshift

cat << EOF | sudo tee /usr/lib/systemd/system/microshift.service
cat <<EOF | sudo tee /usr/lib/systemd/system/microshift.service
[Unit]
Description=MicroShift
After=crio.service
Expand Down Expand Up @@ -263,14 +255,13 @@ prepare_kubeconfig() {
if [ -f $HOME/.kube/config ]; then
mv $HOME/.kube/config $HOME/.kube/config.orig
fi
sudo KUBECONFIG=/var/lib/microshift/resources/kubeadmin/kubeconfig:$HOME/.kube/config.orig /usr/local/bin/kubectl config view --flatten > $HOME/.kube/config
sudo KUBECONFIG=/var/lib/microshift/resources/kubeadmin/kubeconfig:$HOME/.kube/config.orig /usr/local/bin/kubectl config view --flatten >$HOME/.kube/config
}

# validation checks for deployment
validation_check(){
# validation checks for deployment
validation_check() {
echo $HOSTNAME | grep -P '(?=^.{1,254}$)(^(?>(?!\d+\.)[a-zA-Z0-9_\-]{1,63}\.?)+(?:[a-zA-Z]{2,})$)' && echo "Correct"
if [ $? != 0 ];
then
if [ $? != 0 ]; then
echo "======================================================================"
echo "!!! WARNING !!!"
echo "The hostname $HOSTNAME does not follow FQDN, which might cause problems while operating the cluster."
Expand All @@ -288,7 +279,7 @@ validation_check(){
get_distro
get_arch
get_os_version
pre-check-installation
pre_check_installation
if [ "$DISTRO" = "rhel" ]; then
register_subs
fi
Expand All @@ -303,11 +294,10 @@ if [ "$DISTRO" != "ubuntu" ]; then
build_selinux_policy
fi

[ "$CONFIG_ENV_ONLY" = true ] && { echo "Env config complete" && exit 0 ; }
[ "$CONFIG_ENV_ONLY" = true ] && { echo "Env config complete" && exit 0; }
get_microshift

until sudo test -f /var/lib/microshift/resources/kubeadmin/kubeconfig
do
sleep 2
until sudo test -f /var/lib/microshift/resources/kubeadmin/kubeconfig; do
sleep 2
done
prepare_kubeconfig