containerd

Author: leaddevops

scripts/installContainerd.sh

@@ -0,0 +1,92 @@
+#!/bin/bash
+
+install_ubuntu() {
+    ## Remove any pre installed containerd packages:
+    which containerd
+    if [ $? -eq 0 ];then
+       systemctl stop containerd.service
+       apt-get remove -y containerd
+       apt-get purge -y containerd
+       apt -y autoremove
+    else
+       echo "containerd is not installed.. continue to install"
+    fi
+
+    ## Install using the repository:
+    apt-get update
+    apt-get install -y containerd
+
+    if [ $? -eq 0 ];then
+        echo "containerd is successfully installed"
+        configure_contd
+    else
+      echo "issue with containerd installation - process abort"
+      exit 1
+    fi
+    exit 0
+}
+
+install_centos() {
+
+    which containerd
+    if [ $? -eq 0 ];then
+       yum remove -y containerd.io
+       yum clean
+    else
+       echo "containerd is not installed... continue to install"
+    fi
+    yum install -y yum-utils   ## device-mapper-persistent-data lvm2
+    yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
+    yum install containerd.io -y
+    if [ $? -eq 0 ];then
+       echo "containerd is successfully installed"
+       systemctl restart containerd ; clear
+       configure_contd
+    else
+       echo "issue with containerd installation - process abort"
+       exit 1
+    fi
+}
+
+configure_contd() {
+
+cat <<EOF | sudo tee /etc/modules-load.d/containerd.conf
+overlay
+br_netfilter
+EOF
+
+cat <<EOF | sudo tee /etc/sysctl.d/99-kubernetes-cri.conf
+net.bridge.bridge-nf-call-iptables = 1
+net.bridge.bridge-nf-call-ip6tables = 1
+net.ipv4.ip_forward = 1
+EOF
+
+sudo modprobe overlay
+sudo modprobe br_netfilter
+
+#reload kernel config 
+sudo sysctl --system
+# generate default containerd config 
+mkdir -p /etc/containerd
+containerd config default | sudo tee /etc/containerd/config.toml
+sed -i "s/SystemdCgroup = false/SystemdCgroup = true/g" /etc/containerd/config.toml
+systemctl restart containerd
+
+}
+################ MAIN ###################
+
+if [ -f /etc/os-release ];then
+   osname=`grep ID /etc/os-release | egrep -v 'VERSION|LIKE|VARIANT|PLATFORM' | cut -d'=' -f2 | sed -e 's/"//' -e 's/"//'`
+   echo $osname
+   if [ $osname == "ubuntu" ];then
+       install_ubuntu
+   elif [ $osname == "amzn" ];then
+       install_centos
+   elif [ $osname == "centos" ];then
+       install_centos
+  fi
+else
+   echo "can not locate /etc/os-release - unable find the osname"
+   exit 8
+fi
+exit 0