centos7_setup.sh

#!/bin/bash
hey
set -eu

function selinux_setup() {
    if [[ ! -e /etc/sysconfig/selinux ]]; then
        echo "no selinux file";
    else
        selinux_disabled="$(cat /etc/sysconfig/selinux)";
    fi

    if [[ -z "$(echo $selinux_disabled | grep 'SELINUX=disabled')" ]]; then
        echo "selinux not disabled"
        sed -i -e 's/^SELINUX=enforcing.*$/SELINUX=disabled/g' /etc/sysconfig/selinux;
        echo "$(who -b)" > /var/lock/SELINUX_reboot.lock
    else
        echo "selinux disabled"
        return 0
    fi

    if [[ "$(who -b)" == "$( cat /var/lock/SELINUX_reboot.lock)" ]]; then
        echo "reboot your pc with 'init 6'"
        exit 0
    else
        echo "running next"
        rm -f /var/lock/SELINUX_reboot.lock
    fi
    return 0
}

function ufw_setup() {
    yum -y install epel-release
    yum -y update
    yum -y install ufw
    ufw default deny incoming
    ufw default allow outgoing
    ufw allow ssh
    ufw allow https
    ufw allow http
    ufw enable
    systemctl enable ufw
    systemctl start ufw
    return 0
}

function python_setup() {
    yum -y install epel-release
    yum -y install centos-release-scl
    yum -y update
    yum -y install rh-python36 python3-devel postgresql-server \
                   postgresql-devel postgresql-contrib
    python3 -m pip install -U pip
    python3 -m pip install virtualenv
    python3 -m pip install ipython
    return 0
}

function bash-completion_setup() {
    yum -y install epel-release
    yum -y update
    yum -y install bash-completion bash-completion-extras mlocate
    updatedb
    bash_compl_path="$(locate bash_completion.sh)"
    set +eu
    source $bash_compl_path
    set -eu
    return 0
}

function packages_setup() {
    yum -y install epel-release
    yum -y install centos-release-scl
    yum -y update

    yum -y install bash-completion bash-completion-extras mlocate \
                   wget curl net-tools lsof vim \
                   openssh-server openssh rh-python36 \
                   ufw python3-devel @development \
                   git nginx iproute ufw \
                   postgresql-server postgresql-devel postgresql-contrib
    
    return 0
}

if [[ "${1:-}" == "" ]]; then
    echo "use ./centos7_setup.sh all [selinux|ufw|python|bash-completion|packages]";
    exit 0
fi


if [[ "${1:-}" == "selinux" ]]; then
    selinux_setup
fi

if [[ "${1:-}" == "ufw" ]]; then
    ufw_setup
fi

if [[ "${1:-}" == "python" ]]; then
    python_setup
fi

if [[ "${1:-}" == "bash-completion" ]]; then
    bash-completion_setup
fi

if [[ "${1:-}" == "packages" ]]; then
    packages_setup
fi

if [[ "${1:-}" == "all" ]]; then
    selinux_setup
    ufw_setup
    python_setup
    bash-completion_setup
    packages_setup
fi


echo "EXITING"
exit 0