added toolbox. Updated README

README.md

 # Cloud tools
 
-In this repository you can find usefull tools/scripts related with cloud.`
+In this repository you can find usefull tools/scripts related with cloud.
+
+## Project usage to influx
+
+Script copies Openstack usage to influx DB
+
+## Swap
+Script creates Swap partition on VM instance.
+
+### Usage
+See help in the script menu
+
+## Toolbox
+Script runs docker container with all necessary tools required for work with Openstack.
+
+### Icluded tools
+* python 3.8
+* ansible
+* openstack client
+* terraform
+
+### Usage
+* Copy your application credentials `rc` file to the same directory with `toolbox.sh`.
+* Run `# toolbox.sh -p` and apply your appllication credentials inside container `source <app_credentials.sh>`
 

swap/swap.sh

+#!/bin/sh
+
+# System utilities: dd, mount, mkswap, swapon, swapoff, chmod, cat, grep, echo, rm, cp, mv, exit
+
+# Global variables
+SWAP_FILE="${SWAP_FILE:=/swapfile}"
+SWAP_FILE_PERM=0600
+SWAP_ACTION_DEFAULT='help'
+SWAP_ACTION="${SWAP_ACTION:=$1}"
+SWAP_SIZE_DEFAULT_MAX=64
+SWAP_SIZE_DEFAULT_MIN=1
+SWAP_SIZE_DEFAULT=$((SWAP_SIZE_DEFAULT_MAX / 16))
+SWAP_SIZE=${SWAP_SIZE:=$2}
+SWAP_BLOCK_SIZE_DEFAULT_MAX=16384
+SWAP_BLOCK_SIZE_DEFAULT_MIN=512
+SWAP_BLOCK_SIZE_DEFAULT=$SWAP_BLOCK_SIZE_DEFAULT_MIN
+SWAP_BLOCK_SIZE=${SWAP_BLOCK_SIZE:=$3}
+
+FSTAB_FILE='/etc/fstab'
+FSTAB_BAKCUP_FILE="${FSTAB_FILE}.back"
+FSTAB_SWAP_FILE="${FSTAB_FILE}.swapfile"
+FSTAB_SWAP_FILE_LINE="${SWAP_FILE}       none       swap       sw       0 0"
+
+
+
+
+####    HELP
+
+
+
+
+# Help message
+swap_file_help_message()
+{
+    cat << _H_E_L_P
+
+Usage: swap.sh [action] [swap_size] [swap_block_size]
+
+SWAP file create/remove on the system.
+
+Actions (by default: help):
+  c, create  SWAP file create. By default: ${SWAP_FILE}
+  r, remove  SWAP file remove. By default: ${SWAP_FILE}
+  h, help    Print this message.
+
+Arguments:
+  [swap_size]        Set size of SWAP file (gigabytes).
+                       By default: ${SWAP_SIZE_DEFAULT}, min=${SWAP_SIZE_DEFAULT_MIN}, max=${SWAP_SIZE_DEFAULT_MAX}.
+  [swap_block_size]  Set block size of SWAP file (bytes).
+                       By default: ${SWAP_BLOCK_SIZE_DEFAULT}, min=${SWAP_BLOCK_SIZE_DEFAULT_MIN}, max=${SWAP_BLOCK_SIZE_DEFAULT_MAX}.
+
+Environment variables:
+  SWAP_FILE        Set full path of SWAP file.
+  SWAP_ACTION      Set action for the script running.
+  SWAP_SIZE        Set size of SWAP file.
+  SWAP_BLOCK_SIZE  Set block size of SWAP file.
+  SWAP_FILE        Set SWAP file path.
+
+_H_E_L_P
+}
+
+# Print help message
+swap_file_help()
+{
+    swap_file_help_message
+
+    exit 0
+}
+
+# Print help, error message and exit
+swap_file_error()
+{
+    swap_file_help_message
+
+    echo ''
+    echo "ERROR: $*"
+
+    exit 1
+}
+
+
+
+
+####    DEFINITION (action, size, block size)
+
+
+
+
+# SWAP size check as integer
+_size_check_as_integer()
+{
+    if [ -z "$1" ]; then
+        swap_file_error "SWAP ${2}size is empty"
+    else
+        echo "$1" | grep -Eq '^[0-9]+$' > /dev/null
+        if [ ! $? -eq 0 ]; then
+            swap_file_error "Invalid SWAP ${2}size '$1'." "Must be integer"
+        fi
+    fi
+}
+
+# Min size check
+_size_check_as_min()
+{
+    if [ $2 -gt $1 ]; then
+        swap_file_error "Invalid SWAP ${3}size '$1'." "Must be min=$2"
+    fi
+}
+
+# Max size check
+_size_check_as_max()
+{
+    if [ $1 -gt $2 ]; then
+        swap_file_error "Invalid SWAP ${3}size '$1'." "Must be max=$2"
+    fi
+}
+
+# SWAP action define/check
+swap_file_action_define()
+{
+    case "$SWAP_ACTION" in
+        create | c )
+            SWAP_ACTION='create'
+        ;;
+        remove | r )
+            SWAP_ACTION='remove'
+        ;;
+        help | h | '' )
+            SWAP_ACTION="$SWAP_ACTION_DEFAULT"
+        ;;
+        * )
+            swap_file_error "Invalid action '$SWAP_ACTION'"
+        ;;
+    esac
+}
+
+# SWAP size define/check
+swap_file_size_define()
+{
+    case "$SWAP_SIZE" in
+        '' )
+            SWAP_SIZE=$SWAP_SIZE_DEFAULT
+        ;;
+        * )
+            swap_file_size_check
+        ;;
+    esac
+}
+
+# SWAP size check
+swap_file_size_check()
+{
+    _size_check_as_integer "$SWAP_SIZE" ''
+    _size_check_as_min "$SWAP_SIZE" "$SWAP_SIZE_DEFAULT_MIN" ''
+    _size_check_as_max "$SWAP_SIZE" "$SWAP_SIZE_DEFAULT_MAX" ''
+}
+
+# SWAP block size define/check
+swap_file_block_size_define()
+{
+    case "$SWAP_BLOCK_SIZE" in
+        '' )
+            SWAP_BLOCK_SIZE=$SWAP_BLOCK_SIZE_DEFAULT
+        ;;
+        * )
+            swap_file_block_size_check
+        ;;
+    esac
+}
+
+# SWAP block size check
+swap_file_block_size_check()
+{
+    local x_block_size=$SWAP_BLOCK_SIZE_DEFAULT_MIN
+    local str_block='block '
+
+    _size_check_as_integer "$SWAP_BLOCK_SIZE" "$str_block"
+    _size_check_as_min "$SWAP_BLOCK_SIZE" "$SWAP_BLOCK_SIZE_DEFAULT_MIN" "$str_block"
+    _size_check_as_max "$SWAP_BLOCK_SIZE" "$SWAP_BLOCK_SIZE_DEFAULT_MAX" "$str_block"
+
+    # Validation
+    while true; do
+        if [ "$x_block_size" = "$SWAP_BLOCK_SIZE" ]; then
+            break
+        else
+            # Block size error
+            if [ $x_block_size -gt $SWAP_BLOCK_SIZE ]; then
+                swap_file_error "Invalid SWAP block size '$SWAP_BLOCK_SIZE'." \
+                    "Must be '$x_block_size'"
+            fi
+        fi
+
+        x_block_size=$(($x_block_size * 2))
+    done
+}
+
+
+
+
+####    SWAP CREATION
+
+
+
+
+# SWAP file create on system
+swap_file_create_on_system()
+{
+    local block_size=$(($SWAP_SIZE * 1024 * 1024 * 1024 / $SWAP_BLOCK_SIZE))
+
+    echo "SWAP file creating..."
+    dd if=/dev/zero of=$SWAP_FILE bs=$SWAP_BLOCK_SIZE count=$block_size status=progress
+    if [ $? -eq 0 ]; then
+        chmod $SWAP_FILE_PERM "$SWAP_FILE"
+        echo "File '$SWAP_FILE' has been created"
+    else
+        swap_file_error "File '$SWAP_FILE' has not been created"
+    fi
+}
+
+# SWAP make
+swap_file_make()
+{
+    mkswap "$SWAP_FILE"
+    if [ ! $? -eq 0 ]; then
+        swap_file_error "SWAP has not been maked"
+    fi
+
+    swapon "$SWAP_FILE"
+    if [ ! $? -eq 0 ]; then
+        swap_file_error "SWAP file has not been swiched on"
+    fi
+}
+
+# SWAP file create
+swap_file_create()
+{
+    if [ -f "$SWAP_FILE" ]; then
+        swap_file_error "File '$SWAP_FILE' already exists"
+    fi
+
+    swap_file_create_on_system
+    swap_file_make
+
+    cp "$FSTAB_FILE" "$FSTAB_BAKCUP_FILE"
+    if [ ! $? -eq 0 ]; then
+        echo "WARNING: Backup file '$FSTAB_BAKCUP_FILE' has not been created"
+    fi
+
+    echo "$FSTAB_SWAP_FILE_LINE" >> "$FSTAB_FILE"
+    if [ $? -eq 0 ]; then
+        mount -a
+        echo "SWAP file has been created"
+    else
+        swap_file_error "SWAP file has not been added in '$FSTAB_FILE'"
+    fi
+}
+
+
+
+
+####    SWAP REMOVING
+
+
+
+
+# /etc/fstab (FSTAB_FILE) restore
+swap_file_restore_fstab()
+{
+    cp "$FSTAB_FILE" "$FSTAB_SWAP_FILE"
+
+    if [ -f "$FSTAB_BAKCUP_FILE" ]; then
+        mv "$FSTAB_BAKCUP_FILE" "$FSTAB_FILE"
+    else
+        grep -vwE "$SWAP_FILE" "$FSTAB_SWAP_FILE" > "$FSTAB_FILE"
+        if [ ! $? -eq 0 ]; then
+            swap_file_error "File '$FSTAB_FILE' has not been updated without SWAP file"
+        fi
+    fi
+
+    mount -a
+}
+
+# SWAP file remove from /etc/fstab (FSTAB_FILE)
+swap_file_remove_from_fstab()
+{
+    cat $FSTAB_FILE | grep "$SWAP_FILE" > /dev/null
+    if [ $? -eq 0 ]; then
+        swap_file_restore_fstab
+    else
+        echo "WARNING: File '$SWAP_FILE' does not exist in '$FSTAB_FILE'"
+    fi
+}
+
+# SWAP file remove
+swap_file_remove()
+{
+    echo "SWAP file removing..."
+    swap_file_remove_from_fstab
+
+    if [ ! -f "$SWAP_FILE" ]; then
+        swap_file_error "File '$SWAP_FILE' does not exist"
+    fi
+
+    swapoff "$SWAP_FILE"
+    if [ $? -eq 0 ]; then
+        rm -f "$SWAP_FILE"
+        echo "File '$SWAP_FILE' has been removed"
+    else
+        swap_file_error "SWAP OFF is failed"
+    fi
+}
+
+
+
+
+####    MAIN
+
+
+
+
+# Main function
+swap_file()
+{
+    swap_file_action_define
+    swap_file_block_size_define
+    swap_file_size_define
+
+    swap_file_$SWAP_ACTION
+}
+
+
+# Execution if defined that
+if [ -f "$0" ]; then
+    swap_file
+
+    exit 0
+fi

toolbox/toolbox.sh

+#!/bin/bash
+# Toolbox is a script for running openstack openstack cloud compatible environment
+# with tools and nice PS1 with a Whale
+
+print_usage() {
+  printf "Usage: Just run ./toolbox.sh\n"
+  printf "  -p : pull image before running it\n"
+}
+
+HOST_KRB5CONF="/etc/krb5.conf"
+HOST_LOCALTIME="/etc/localtime"
+TOOLBOX="registry.gitlab.ics.muni.cz:443/cloud/cloud-toolbox/toolbox"
+REPO_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )"
+TMP_DIR="/tmp/cloud-toolbox"
+
+GUEST_HOME="/home/cloud"
+GUEST_KRB5CONF=$HOST_KRB5CONF
+GUEST_LOCALTIME=$HOST_LOCALTIME
+GUEST_VOLUME="cloud-toolbox"
+
+while getopts 'ph' option
+do
+case "${option}"
+in
+p) docker pull "$TOOLBOX" && docker image prune -f ;;
+h) print_usage
+   exit 1 ;;
+esac
+done
+
+# On MacOS it is not possible to bind anything in /etc
+# make a copy and bind that instead
+if [[ "$OSTYPE" == "darwin"* ]]; then
+  mkdir -p "$TMP_DIR"
+
+  cp "$HOST_KRB5CONF" "${TMP_DIR}/krb5.conf"
+  HOST_KRB5CONF="${TMP_DIR}/krb5.conf"
+
+  cp "$HOST_LOCALTIME" "${TMP_DIR}/localtime"
+  HOST_LOCALTIME="${TMP_DIR}/localtime"
+fi
+
+if [ -z "$SSH_AUTH_SOCK" ]; then
+  printf "Set SSH_AUTH_SOCK with path to ssh-agent's auth socket\n"
+  exit 1
+fi
+
+docker volume create --name "$GUEST_VOLUME" 1> /dev/null
+
+docker run -it --rm \
+  --net=host \
+  -e KRB5CCNAME="FILE:${GUEST_HOME}/.krb5_ticket" \
+  -e SSH_AUTH_SOCK=/ssh-agent \
+  -e LC_ALL=C.UTF-8 \
+  -v "${SSH_AUTH_SOCK}:/ssh-agent" \
+  -v "${HOST_LOCALTIME}:${GUEST_LOCALTIME}:ro" \
+  -v "${GUEST_VOLUME}:${GUEST_HOME}" \
+  -v "${REPO_DIR}/.toolbox_bashrc:${GUEST_HOME}/.bashrc:ro" \
+  -v "${REPO_DIR}:${GUEST_HOME}/repo:z" \
+  -v "${HOST_KRB5CONF}:${GUEST_KRB5CONF}:ro" \
+  $TOOLBOX /bin/bash