bash_shell_config.sh

#!/bin/bash

# Maintainer: Mohammad Badruzzaman 

#set -xe

# Environments 
bold=$(tput bold)
red=$(tput setaf 1)
green=$(tput setaf 2)
normal=$(tput sgr0)


# Kubectl completion
###################################
echo "Installing and setting up kubectl ..."
sudo apt-get update  >  /dev/null 2>&1 && sudo apt-get install -y apt-transport-https  >  /dev/null 2>&1
curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -  > /dev/null 2>&1
echo "deb https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee -a /etc/apt/sources.list.d/kubernetes.list > /dev/null 2>&1
sudo apt-get update  > /dev/null 2>&1
sudo apt-get install -y kubectl  > /dev/null 2>&1
grep -q -F 'source <(kubectl completion bash)' ~/.bashrc || cat << FOE >> ~/.bashrc

# Kubectl Completion
source <(kubectl completion bash)
alias k=kubectl
complete -o default -F __start_kubectl k

FOE
echo "${green}Kubectl installation Successfull.${normal}"
KUBECTL_VERSION=$(kubectl version --client | awk '{print $5}' | awk -F ":" '{print $2}' |  head -c -2 | xargs)
echo "${green}Kubectl version: ${KUBECTL_VERSION}${normal}"


# Setup kube-ps1
echo "Setting up kube-ps1 ..."
mkdir -p ~/.kube-ps1
# Source: https://github.com/jonmosco/kube-ps1
wget -q https://raw.githubusercontent.com/jonmosco/kube-ps1/master/kube-ps1.sh -P ~/.kube-ps1/ >  /dev/null 2>&1
chmod +x ~/.kube-ps1/kube-ps1.sh 
grep -q -F 'source ~/.kube-ps1/kube-ps1.sh' ~/.bashrc || echo -e     \
        '\n# Configure kube-ps1\nsource ~/.kube-ps1/kube-ps1.sh\n' >> ~/.bashrc
echo "${green}Kube-ps1 setup Successfull.${normal}"


# Kubectx and kubens for bash shell 
###################################
echo "Setting up kubectx and kubens ..."
rm -rf ~/.kubectx || true
# Source: https://github.com/ahmetb/kubectx
git clone https://github.com/ahmetb/kubectx.git ~/.kubectx   > /dev/null 2>&1
COMPDIR=$(pkg-config --variable=completionsdir bash-completion)
sudo ln -sf ~/.kubectx/completion/kubens.bash $COMPDIR/kubens
sudo ln -sf ~/.kubectx/completion/kubectx.bash $COMPDIR/kubectx
grep -q -F '# Kubectx and kubens' ~/.bashrc || cat << FOE >> ~/.bashrc

# Kubectx and kubens
export PATH=~/.kubectx:\$PATH

FOE
echo "${green}Kubectx and kubens setup Successfull.${normal}"


# Helm Completion 
###################################
echo "Installing and setting up helm ..."
# Source: https://github.com/helm/helm/blob/master/docs/install.md
curl -s https://raw.githubusercontent.com/helm/helm/master/scripts/get | bash > /dev/null 2>&1

# Source: https://github.com/helm/helm/blob/master/docs/helm/helm_completion.md
grep -q -F '<(helm completion bash)' ~/.bashrc || echo -e     \
	'\n# Helm Completion\nsource <(helm completion bash)\n' >> ~/.bashrc
echo "${green}Helm installation successful.${normal}"
HELM_VERSION=$(helm version -c | awk '{print $2}' |  awk -F ":" '{print $2}' |  head -c -2  | xargs)
echo "${green}Helm version: ${HELM_VERSION}${normal}"


# AWS CLI Completion 
###################################
grep -q -F 'complete -C `which aws_completer`' ~/.bashrc || echo -e     \
	'\n# AWS CLI Completion\ncomplete -C `which aws_completer` aws\n' >> ~/.bashrc


# VAULT CLI Completion 
###################################
# Uncomment if you want vault completion
grep -q -F 'complete -C /usr/local/bin/vault vault' ~/.bashrc || echo -e     \
	'\n# Vault CLI Completion\ncomplete -C /usr/local/bin/vault vault\n' >> ~/.bashrc


#################################
#####        NOTE           #####
#################################
#Git Bash Prompt should be alway the last configuration as it set PS1 variable for the terminal


# Git Bash Prompt
###################################
echo "Setting up bash-git-promt ..."
rm -rf ~/.bash-git-prompt
# source: https://github.com/magicmonty/bash-git-prompt
git clone https://github.com/magicmonty/bash-git-prompt.git ~/.bash-git-prompt --depth=1 > /dev/null 2>&1
grep -q -F 'GIT_PROMPT_ONLY_IN_REPO' ~/.bashrc || cat << EOF >> ~/.bashrc

# Bash-git-prompt config 
GIT_PROMPT_ONLY_IN_REPO=0
source ~/.bash-git-prompt/gitprompt.sh
# The following variable value set the PS1 variable 
GIT_PROMPT_START="\u@\h:\W\e[93m aws:\\\$AWS_PROFILE\e[39m \${ResetColor} \\\$(kube_ps1)"

EOF
echo "${green}Bash-git-promt setup successful.${normal}"