Create entry_point.sh

entry_point.sh

@@ -0,0 +1,171 @@
+#!/bin/bash
+set -e
+
+_ROOT_DIR="${PWD}"
+_WORKDIR="${_ROOT_DIR}/unfor19-awscli"
+_DOWNLOAD_FILENAME="unfor19-awscli.zip"
+_VERBOSE=${VERBOSE:-"false"}
+_DEFAULT_VERSION=2
+_AWS_CLI_VERSION=${1:-$AWS_CLI_VERSION} # Use env or arg
+_AWS_CLI_VERSION=${_AWS_CLI_VERSION^^} # All uppercase
+_AWS_CLI_VERSION=${_AWS_CLI_VERSION//V/} # Remove "V"
+_AWS_CLI_VERSION=${_AWS_CLI_VERSION:-$_DEFAULT_VERSION}
+_DOWNLOAD_URL=""
+_LIGHTSAIL_INSTALL=${LIGHTSAILCTL:-"false"}
+
+msg_error(){
+    msg=$1
+    echo -e ">> [ERROR]: ${msg}"
+    exit 1
+}
+
+
+msg_log(){
+    msg=$1
+    echo -e ">> [LOG]: ${msg}"
+}
+
+
+set_workdir(){
+    mkdir -p "${_WORKDIR}"
+    cd "${_WORKDIR}"
+}
+
+
+valid_semantic_version(){
+    msg_log "Validating semantic version - $_AWS_CLI_VERSION"
+    if [[ $_AWS_CLI_VERSION =~ ^([1,2]|[1,2](\.[0-9]{1,2}\.[0-9]{1,3}))$ ]]; then
+        msg_log "Valid version input"
+    else
+        msg_error "Invalid version input \"$_AWS_CLI_VERSION\", should match: ^([1,2]|[1,2](\.[0-9]{1,2}\.[0-9]{1,3}))$"
+    fi
+}
+
+
+set_download_url(){
+    msg_log "Setting _DOWNLOAD_URL"
+    # v1
+    if [[ $_AWS_CLI_VERSION =~ ^1.*$ ]]; then
+        if [[ $_AWS_CLI_VERSION = "1" ]]; then
+            _DOWNLOAD_URL="https://s3.amazonaws.com/aws-cli/awscli-bundle.zip"
+        else
+            _DOWNLOAD_URL="https://s3.amazonaws.com/aws-cli/awscli-bundle-${_AWS_CLI_VERSION}.zip"
+        fi
+    # v2
+    elif [[ $_AWS_CLI_VERSION =~ ^2.*$ ]]; then
+        if [[ $_AWS_CLI_VERSION = "2" ]]; then
+            # Latest v2
+            _DOWNLOAD_URL="https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip"
+        else
+            # Specific v2
+            _DOWNLOAD_URL="https://awscli.amazonaws.com/awscli-exe-linux-x86_64-${_AWS_CLI_VERSION}.zip"
+        fi
+    fi
+    msg_log "_DOWNLOAD_URL = ${_DOWNLOAD_URL}"
+}
+
+
+check_version_exists(){
+    msg_log "Checking if the provided version exists in AWS"
+    local exists
+    set +e
+    exists=$(wget -q -S --spider "$_DOWNLOAD_URL" 2>&1 | grep 'HTTP/1.1 200 OK')
+    set -e
+    if [[ -n $exists ]]; then
+        msg_log "Provided version exists - ${_AWS_CLI_VERSION}"
+    else
+        msg_error "Provided version does not exist - ${_AWS_CLI_VERSION}"
+    fi
+}
+
+
+download_aws_cli(){
+    msg_log "Downloading ..."
+    wget -q -O "$_DOWNLOAD_FILENAME" "$_DOWNLOAD_URL"
+    [[ $_VERBOSE = "true" ]] && ls -lah "$_DOWNLOAD_FILENAME"
+    wait
+}
+
+
+install_aws_cli(){
+    local aws_path
+    msg_log "Unzipping ${_DOWNLOAD_FILENAME}"
+    unzip -qq "$_DOWNLOAD_FILENAME"
+    [[ $_VERBOSE = "true" ]] && ls -lah
+    wait
+    msg_log "Installing AWS CLI - ${_AWS_CLI_VERSION}"
+    if [[ $_AWS_CLI_VERSION =~ ^1.*$ ]]; then
+        ./awscli-bundle/install -i /usr/local/aws -b /usr/local/bin/aws
+    elif [[ $_AWS_CLI_VERSION =~ ^2.*$ ]]; then
+        set +e
+        aws_path=$(which aws)
+        [[ -n $aws_path ]] && msg_log "aws_path = $aws_path"
+        set -e
+        if [[ $aws_path =~ ^.*aws.*not.*found || -z $aws_path ]]; then
+            # Fresh install
+            ./aws/install --bin-dir /usr/local/bin --install-dir /usr/local/aws-cli
+        else
+            # Update
+            ./aws/install --bin-dir /usr/local/bin --install-dir /usr/local/aws-cli --update
+        fi
+    fi
+    msg_log "Installation completed"
+}
+
+
+cleanup(){
+    cd "${_ROOT_DIR}"
+    [[ $_VERBOSE = "true" ]] && ls -lh
+    rm -rf "${_WORKDIR}"
+    [[ $_VERBOSE = "true" ]] && ls -lh
+    wait
+}
+
+
+test_aws_cli(){
+    msg_log "Printing AWS CLI installed version"
+    aws --version
+}
+
+
+install_lightsailctl(){
+    if [[ $_LIGHTSAIL_INSTALL = "true" ]]; then
+        if [[ $_AWS_CLI_VERSION =~ ^2.*$ ]]; then
+            msg_log "Installing Lightsailctl"
+            wget -q -O "/usr/local/bin/lightsailctl" "https://s3.us-west-2.amazonaws.com/lightsailctl/latest/linux-amd64/lightsailctl"
+            wait
+            chmod +x /usr/local/bin/lightsailctl
+            msg_log "Installation complete"
+        else
+            msg_error "Cannot install Lightsail plugin with CLI 1.x"
+        fi
+    fi
+}
+
+
+test_lightsailctl(){
+  local installed_lightsail
+  if [[ $_LIGHTSAIL_INSTALL = "true" ]]; then
+    set +e
+    installed_lightsail=$(lightsailctl 2>&1 | grep "it is meant to be invoked by AWS CLI")
+    set -e
+    if [[ -n $installed_lightsail ]]; then
+      msg_log "Lightsail was installed successfully"
+    else
+      error_msg "Failed to install lightsailctl"
+    fi
+  fi
+}
+
+
+# Main
+set_workdir
+valid_semantic_version
+set_download_url
+check_version_exists
+download_aws_cli
+install_aws_cli
+install_lightsailctl
+cleanup
+test_aws_cli
+test_lightsailctl