Create E20250418 ubuntu init script.md

Author: ecsimsw

ops/E20250418 ubuntu init script.md

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+<img width="477" alt="스크린샷 2025-04-18 오전 1 23 37" src="https://github.com/user-attachments/assets/8ff8eac1-1816-4179-b9f4-da4a62c0dc79" />
+
+``` bash
+#!/bin/bash
+
+set -e
+
+echo "Ubuntu init script by ecsimsw."
+echo
+
+if [[ $EUID -ne 0 ]]; then
+    echo "ERROR :: You need to be root to run this script"
+    exit 1
+fi
+
+read -p "user name (enter for skip) : " NEWUSER
+read -p "java version (enter for skip) : " JAVAVER
+
+if [[ -n "$NEWUSER" ]]; then
+    if id "$NEWUSER" &>/dev/null; then
+        echo "ERROR :: user already exists"
+        exit 1
+    fi
+    useradd -m -s /bin/bash "$NEWUSER"
+    usermod -aG sudo "$NEWUSER"
+    usermod -aG docker "$NEWUSER"
+    chsh -s "$(which zsh)" "$NEWUSER"
+    echo "$NEWUSER created, added to docker group, and zsh set as default shell."
+fi
+
+apt-get update > /dev/null 2>&1
+
+apt-get install -y zsh > /dev/null 2>&1
+echo "zsh installed"
+apt-get install -y net-tools > /dev/null 2>&1
+echo "net-tools installed"
+apt-get install -y curl > /dev/null 2>&1
+echo "curl installed"
+apt-get install -y wget > /dev/null 2>&1
+echo "wget installed"
+apt-get install -y ufw > /dev/null 2>&1
+echo "ufw installed"
+apt-get install -y vim > /dev/null 2>&1
+echo "vim installed"
+apt-get install -y unzip > /dev/null 2>&1
+echo "unzip installed"
+apt-get install -y tree > /dev/null 2>&1
+echo "tree installed"
+apt-get install -y git > /dev/null 2>&1
+echo "git installed"
+apt-get install -y htop > /dev/null 2>&1
+echo "htop installed"
+apt-get install -y ncdu > /dev/null 2>&1
+echo "ncdu installed"
+
+if ! command -v aws > /dev/null 2>&1; then
+    curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o /tmp/awscliv2.zip > /dev/null 2>&1
+    unzip -q /tmp/awscliv2.zip -d /tmp
+    /tmp/aws/install > /dev/null 2>&1
+    rm -rf /tmp/aws /tmp/awscliv2.zip
+    if command -v aws > /dev/null 2>&1; then
+        echo "aws cli installed"
+    else
+        echo "ERROR :: aws cli install failed"
+    fi
+else
+    echo "aws cli installed"
+fi
+
+if [[ -n "$JAVAVER" ]]; then
+    apt-get install -y "openjdk-${JAVAVER}-jdk" > /dev/null 2>&1
+    echo "java installed"
+    JAVA_PATH=$(update-java-alternatives -l | grep "java-${JAVAVER}-openjdk" | awk '{print $3}')
+    if [[ -z "$JAVA_PATH" ]]; then
+        JAVA_PATH=$(dirname $(dirname $(readlink -f $(which javac))))
+    fi
+    if [[ -n "$NEWUSER" ]]; then
+        echo "export JAVA_HOME=$JAVA_PATH" >> /home/"$NEWUSER"/.zshrc
+        echo 'export PATH=$JAVA_HOME/bin:$PATH' >> /home/"$NEWUSER"/.zshrc
+        chown "$NEWUSER":"$NEWUSER" /home/"$NEWUSER"/.zshrc
+        echo "java env added to .zshrc"
+    fi
+fi
+
+apt-get install -y ca-certificates > /dev/null 2>&1
+echo "ca-certificates installed"
+apt-get install -y gnupg > /dev/null 2>&1
+echo "gnupg installed"
+apt-get install -y lsb-release > /dev/null 2>&1
+echo "lsb-release installed"
+mkdir -p /etc/apt/keyrings
+curl -fsSL https://download.docker.com/linux/ubuntu/gpg | gpg --dearmor -o /etc/apt/keyrings/docker.gpg > /dev/null 2>&1
+echo "docker gpg key added"
+
+echo \
+  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] \
+  https://download.docker.com/linux/ubuntu \
+  $(lsb_release -cs) stable" | tee /etc/apt/sources.list.d/docker.list > /dev/null
+apt-get update > /dev/null 2>&1
+
+apt-get install -y docker-ce > /dev/null 2>&1
+echo "docker-ce installed"
+apt-get install -y docker-ce-cli > /dev/null 2>&1
+echo "docker-ce-cli installed"
+apt-get install -y containerd.io > /dev/null 2>&1
+echo "containerd.io installed"
+apt-get install -y docker-compose-plugin > /dev/null 2>&1
+echo "docker-compose-plugin installed"
+apt-get install -y docker-compose > /dev/null 2>&1
+echo "docker-compose installed"
+
+if [[ -n "$NEWUSER" ]]; then
+    sudo -u "$NEWUSER" bash <<'EOF'
+if [ ! -d ~/.zsh/zsh-autosuggestions ]; then
+    git clone https://github.com/zsh-users/zsh-autosuggestions ~/.zsh/zsh-autosuggestions > /dev/null 2>&1
+fi
+if ! grep -q "zsh-autosuggestions.zsh" ~/.zshrc; then
+    echo '
+source ~/.zsh/zsh-autosuggestions/zsh-autosuggestions.zsh
+' >> ~/.zshrc
+fi
+EOF
+fi
+
+CURRENT_USER="${SUDO_USER:-$(whoami)}"
+usermod -aG docker "$CURRENT_USER"
+chsh -s "$(which zsh)" "$CURRENT_USER"
+sudo -u "$CURRENT_USER" bash <<'EOF'
+if [ ! -d ~/.zsh/zsh-autosuggestions ]; then
+    git clone https://github.com/zsh-users/zsh-autosuggestions ~/.zsh/zsh-autosuggestions > /dev/null 2>&1
+fi
+if ! grep -q "zsh-autosuggestions.zsh" ~/.zshrc; then
+    echo '
+source ~/.zsh/zsh-autosuggestions/zsh-autosuggestions.zsh
+' >> ~/.zshrc
+fi
+EOF
+echo "$CURRENT_USER is now in docker group and zsh is set as default shell."
+
+echo
+echo "finished"
+```