- Start Docker Tools 1.4 new features,

- Add docker_network_up & docker_network_down scripts called by docker_start & docker_stop.

ReadMe.txt

@@ -5,9 +5,18 @@ Welcome to Rx3-Docker/Docker Tools!
 This project aims to give some basic tools to be used by other Rx3 docker packaging projects.
 
 Features:
+    - docker_tools_install & docker_mk_dir to setup a new application environment,
     - docker_mk_env command to compile env file into .env file,
     - docker_start, docker_stop & docker_logs command,
-    - docker_service_add env file function.
+    - docker_network_up & docker_network_down automatically called to setup external network rule & route,
+    - docker_service_add env file function,
+    - docker_build_push,
+
+Support different mounted volume modes:
+    - Single,
+    - Mixed (Old mode),
+    - Merged,
+    - Splited (Default).
 
 
 Enjoy it!

ReleaseNotes.txt

@@ -1,3 +1,79 @@
+------------------------------------------------------------------------------------------------------------------------------------
+Rx3-Docker/Docker Tools V 1.4.0 - A. GIBERT - 2025/04/XX
+------------------------------------------------------------------------------------------------------------------------------------
+
+- Add docker_network_up & docker_network_down scripts called by docker_start & docker_stop.
+
+
+
+------------------------------------------------------------------------------------------------------------------------------------
+Rx3-Docker/Docker Tools V 1.3.7 - A. GIBERT - 2025/03/31
+------------------------------------------------------------------------------------------------------------------------------------
+
+- Remove ${service_name} == ${APPL_NAME} exception handling for *_IMG_URL.
+
+
+
+------------------------------------------------------------------------------------------------------------------------------------
+Rx3-Docker/Docker Tools V 1.3.6 - A. GIBERT - 2025/01/31
+------------------------------------------------------------------------------------------------------------------------------------
+
+- Add a new DOCKER_TOOLS_USER_GROUP_FORCE env variable support.
+
+
+
+------------------------------------------------------------------------------------------------------------------------------------
+Rx3-Docker/Docker Tools V 1.3.5 - A. GIBERT - 2025/01/24
+------------------------------------------------------------------------------------------------------------------------------------
+
+- Add a new DOCKER_TOOLS_VOLUME mode: "MIXED".
+
+
+
+------------------------------------------------------------------------------------------------------------------------------------
+Rx3-Docker/Docker Tools V 1.3.4 - A. GIBERT - 2025/01/13
+------------------------------------------------------------------------------------------------------------------------------------
+
+- Replace ENV_SED by ENV_NET_SED environment variable.
+
+
+
+------------------------------------------------------------------------------------------------------------------------------------
+Rx3-Docker/Docker Tools V 1.3.3 - A. GIBERT - 2025/01/05
+------------------------------------------------------------------------------------------------------------------------------------
+
+- Add DOCKER_TOOLS_EXEPTION_LOGS env variable support,
+- Remove .env.sed file obsoleted by ENV_SED environment variable.
+
+
+
+------------------------------------------------------------------------------------------------------------------------------------
+Rx3-Docker/Docker Tools V 1.3.2 - A. GIBERT - 2024/12/27
+------------------------------------------------------------------------------------------------------------------------------------
+
+- Add docker_config_add function for docker_mk_env to support config file generation.
+
+
+
+------------------------------------------------------------------------------------------------------------------------------------
+Rx3-Docker/Docker Tools V 1.3.1 - A. GIBERT - 2024/12/14
+------------------------------------------------------------------------------------------------------------------------------------
+
+- Add docker_mk_dir & docker_tools_install commands.
+
+
+
+------------------------------------------------------------------------------------------------------------------------------------
+Rx3-Docker/Docker Tools V 1.3.0 - A. GIBERT - 2024/11/26
+------------------------------------------------------------------------------------------------------------------------------------
+
+- Improve docker_service_add function,
+- Switch by default to splited volume mode, 
+- Add DOCKER_TOOLS_DEBUG, DOCKER_TOOLS_VOLUME & DOCKER_TOOLS_EXEPTION_LIBS env variable support.
+- Warning: API break!
+
+
+
 ------------------------------------------------------------------------------------------------------------------------------------
 Rx3-Docker/Docker Tools V 1.2.0 - A. GIBERT - 2024/11/15
 ------------------------------------------------------------------------------------------------------------------------------------

sbin/docker_mk_dir

@@ -0,0 +1,33 @@
+#!/bin/bash
+#-------------------------------------------------------------------------------
+
+#set -o errexit
+
+
+
+grep -e _LOG_ -e _LIB_  .env | grep -e _EXT= | while read line
+do
+    OIFS=$IFS
+    IFS="="
+
+    set $line
+
+    IFS=$OIFS
+
+    
+    grep $1 compose.yaml >/dev/null
+
+    if [[ "$?" == "0" ]]
+    then
+        eval echo $2
+    fi
+done | sort -u | while read dir
+do
+    echo "Add/Create: [${dir}]"
+    
+    mkdir -p ${dir} 
+    echo -e '# Ignore everything in this directory\n*\n# Except this file\n!.gitignore' > ${dir}/.gitignore
+
+    git add ${dir}/.gitignore
+done
+

sbin/docker_mk_env

@@ -1,10 +1,36 @@
 #!/bin/bash
 #-------------------------------------------------------------------------------
 
+#-------------------------------------------------------------------------------
+#
+# DOCKER_TOOLS_DEBUG= TRUE | FALSE                                  # Enable debugging (Default FALSE)
+#
+# DOCKER_TOOLS_VOLUME= SINGLE | MIXED | MERGED | SPLITED            # Default: SPLITED
+#     SINGLE:  Merged volume mode     + No service suffix
+#     MIXED:   Merged volume mode     + Init/SV log Service suffix
+#     MERGED:  Merged volume mode     + Full service suffix
+#     SPLITED: By service volume mode + No service suffix
+#
+# DOCKER_TOOLS_EXEPTION_LIBS="module_name:lib_dir_name ..."
+#     Example: "postgres:pgsq httpd:/var/www/html"
+#
+# DOCKER_TOOLS_EXEPTION_LOGS="module_name:log_dir_name ..."
+#     Example: "postgres:web-server:httpd"
+#
+# DOCKER_TOOLS_USER_GROUP_FORCE= TRUE | FALSE                       # Force using curent user / group (Default FALSE)
+#
+#-------------------------------------------------------------------------------
+
 set -o errexit
 
+if [[ "${DOCKER_TOOLS_DEBUG}" == "TRUE" ]]
+then
+    set -x
+fi
+
 APPL_HOME_DIR="$(dirname "$(dirname "$0")")"
-DYNVAR_LIST=""
+DYNVAR_LIST="APPL_HOME_DIR"
+CONFIG_FILE_LIST=""
 
 version="$1"
 
@@ -24,86 +50,283 @@ function dynvar_export
 
 
 
+#-------------------------------------------------------------------------------
+function psfix_cat
+{
+       prefix=$1
+    separator=$2
+       suffix=$3
+
+    
+    if [[ "${prefix}" == "" ]] || [[ "${suffix}" == "" ]]
+    then
+        separator=""
+    fi
+    
+    echo "${prefix}${separator}${suffix}"
+}
+
+
+
+#-------------------------------------------------------------------------------
+function module_lib_name_get
+{
+       module=$1
+
+       for tup in ${DOCKER_TOOLS_EXEPTION_LIBS}
+       do
+           if [[ "${module}" == "${tup/:*}" ]]
+           then
+               echo ${tup/*:}
+               return
+           fi
+       done
+
+       echo "${module}"
+}
+
+
+
+#-------------------------------------------------------------------------------
+function module_log_name_get
+{
+       module=$1
+
+       for tup in ${DOCKER_TOOLS_EXEPTION_LOGS}
+       do
+           if [[ "${module}" == "${tup/:*}" ]]
+           then
+               echo ${tup/*:}
+               return
+           fi
+       done
+
+       echo "${module}"
+}
+
+
+
 #-------------------------------------------------------------------------------
 function docker_service_add
 {
     varible_prefix="$1"
     shift
-    
+
-    for var in NAME NAME_FULL URL_PREFIX IMG_NAME APPL_NAME VERSION_EXT VERSION_INT PORT_MAIN_EXT PORT_MAIN_INT PORT_ADMIN_EXT PORT_ADMIN_INT USER_NAME GROUP_NAME
+    for var in service_name target_url_prefix target_name target_name_full target_version from_url_prefix from_name from_version module_name module_version port_main_ext port_main_int port_admin_ext port_admin_int user_name_id group_name_id
     do
-        dynvar_export "${varible_prefix}_${var}" "$1"
+        eval ${var}=\"${1}\"
         shift
     done
+  
+    
+    # Service variables
+
+    dynvar_export "${varible_prefix}_SERVICE_NAME"       "${service_name}"
+
 
     
-    dynvar_export "${varible_prefix}_LOG_INT_INIT_DIR"       "/var/log/init"
+    # Global Image variables
-    dynvar_export "${varible_prefix}_LOG_EXT_INIT_DIR"       "./var/log/init-\${${varible_prefix}_NAME}"
+    
-    dynvar_export "${varible_prefix}_LOG_INT_SV_DIR"         "/var/log/supervisor"
+    if [[ "${target_name}" == "-" ]]
-    dynvar_export "${varible_prefix}_LOG_EXT_SV_DIR"         "./var/log/supervisor-\${${varible_prefix}_NAME}"
-
-    if [[ $( eval echo \${${varible_prefix}_APPL_NAME}) != "-" ]]
     then
-        dynvar_export "${varible_prefix}_LIB_INT_DIR"        "/var/lib/\${${varible_prefix}_APPL_NAME}"
+        target_name="${service_name}"
-        dynvar_export "${varible_prefix}_LIB_EXT_DIR"        "./var/lib/\${${varible_prefix}_APPL_NAME}"
-        dynvar_export "${varible_prefix}_LOG_INT_MAIN_DIR"   "/var/log/\${${varible_prefix}_APPL_NAME}"
-        dynvar_export "${varible_prefix}_LOG_EXT_MAIN_DIR"   "./var/log/\${${varible_prefix}_APPL_NAME}"
     fi
     
-    if [[ $( eval echo \${${varible_prefix}_IMG_NAME}) != "-" ]]
+    dynvar_export "${varible_prefix}_IMG_NAME"           "${target_name}"
+    dynvar_export "${varible_prefix}_IMG_NAME_FULL"      "${target_name_full}"
+    dynvar_export "${varible_prefix}_IMG_VERSION"        "${target_version}"
+    dynvar_export "${varible_prefix}_IMG_MAINTAINER"     "\${ORG_MAINTAINER}"
+    dynvar_export "${varible_prefix}_IMG_URL"            "${target_url_prefix}/${target_name}:${target_version}"
+
+    if [[ "${service_name}" == "${APPL_NAME}" ]]
     then
-        # No Build
+#        dynvar_export "${varible_prefix}_IMG_URL"        "${target_url_prefix}:${target_version}"
-        
+        dynvar_export "${varible_prefix}_HOST_NAME"      "$( psfix_cat "${HOST_NAME_PREFIX}" "-" "webapp")"
-        dynvar_export "${varible_prefix}_IMG_URL"        "\${${varible_prefix}_URL_PREFIX}/\${${varible_prefix}_IMG_NAME}:\${${varible_prefix}_VERSION_EXT}"
     else
+#        dynvar_export "${varible_prefix}_IMG_URL"        "${target_url_prefix}/${target_name}:${target_version}"
+        dynvar_export "${varible_prefix}_HOST_NAME"      "$( psfix_cat "${HOST_NAME_PREFIX}" "-" "${service_name}")"
+    fi
+
+
+    # Building variables
+    
+    if [[ "${module_name}" == "-" ]]
+    then
+        module_name="${target_name}"
+    fi
+
+    if [[ "${target_name_full}" != "-" ]]
+    then
         # Build
         
-        dynvar_export "${varible_prefix}_IMG_URL"        "\${${varible_prefix}_URL_PREFIX}/\${${varible_prefix}_NAME}:\${${varible_prefix}_VERSION_EXT}"
+        dynvar_export "${varible_prefix}_MODULE_NAME"    "${module_name}"
-        
+        dynvar_export "${varible_prefix}_MODULE_PATH"    "src/${module_name}"
-        dynvar_export "${varible_prefix}_MODULE_NAME"    "\${${varible_prefix}_NAME}"    
+        dynvar_export "${varible_prefix}_MODULE_VERSION" "${module_version}"
-        dynvar_export "${varible_prefix}_MODULE_PATH"    "src/\${${varible_prefix}_NAME}"
+
+        dynvar_export "${varible_prefix}_IMG_FROM_URL"   "${from_url_prefix}/${from_name}:${from_version}"
     fi
     
-    dynvar_export "${varible_prefix}_CONTAINER_NAME"     "${CONTAINER_NAME_PREFIX}-\${${varible_prefix}_NAME}"
-    dynvar_export "${varible_prefix}_HOST"               "\${${varible_prefix}_CONTAINER_NAME}"
-    
-    dynvar_export "${varible_prefix}_PORT_MAIN_EXT"      "\$(( \${${varible_prefix}_PORT_MAIN_EXT} + ${PORT_ENV_OFFSET}))"
-    dynvar_export "${varible_prefix}_PORT_SV_EXT"        "\$(( \${${varible_prefix}_PORT_MAIN_EXT} + ${PORT_SV_OFFSET}))"
-    dynvar_export "${varible_prefix}_PORT_SV_INT"        "9001"
 
-    if [[ $( eval echo \${${varible_prefix}_PORT_ADMIN_EXT}) != "-" ]]
+    # Volume Directories
-    then
-        dynvar_export "${varible_prefix}_PORT_ADMIN_EXT" "\$(( \${${varible_prefix}_PORT_ADMIN_EXT} + ${PORT_ENV_OFFSET}))"        
-    fi
 
-    if [[ $( eval echo \${${varible_prefix}_USER_NAME}) == "-" ]]
+    if [[  "${APPL_NAME}" != "" ]]
     then
-        dynvar_export "${varible_prefix}_USER_ID"        "-"
+        dynvar_export "${varible_prefix}_CONTEXT_PATH"   "/${APPL_NAME}/${service_name}/"
     else
-        if [[ $( eval echo \${${varible_prefix}_USER_NAME}) =~ ^[0-9]+$ ]]
+        DOCKER_TOOLS_VOLUME="SINGLE"
-        then
+        dynvar_export "${varible_prefix}_CONTEXT_PATH"   "/${service_name}/"
-            dynvar_export "${varible_prefix}_USER_ID"    "\${${varible_prefix}_USER_NAME}"
-        else
-            dynvar_export "${varible_prefix}_USER_ID"    "\$( id -u \${${varible_prefix}_USER_NAME})"
-        fi
     fi
-    
+
-    if [[ $( eval echo \${${varible_prefix}_GROUP_NAME}) == "-" ]]
+
+    if [[ "${DOCKER_TOOLS_VOLUME}" == "" ]]
     then
-        dynvar_export "${varible_prefix}_GROUP_ID"     "-"
+        DOCKER_TOOLS_VOLUME="SPLITED"
-    else        
+    fi
-        if [[ $( eval echo \${${varible_prefix}_GROUP_NAME}) =~ ^[0-9]+$ ]]
+    
+    if [[ "${DOCKER_TOOLS_VOLUME}" != "SPLITED" ]]
+    then
+        volume_prefix="."
+    else
+        volume_prefix="./mnt/${service_name}"
+    fi
+
+    
+    if [[ "${DOCKER_TOOLS_VOLUME}" == "SINGLE" ]] || [[ "${DOCKER_TOOLS_VOLUME}" == "SPLITED" ]]
+    then
+        volume_suffix_initsv_ext=""
+        volume_suffix_module_ext=""
+    else
+        volume_suffix_initsv_ext="${service_name}"
+        
+        if [[ "${DOCKER_TOOLS_VOLUME}" == "MIXED"  ]]
         then
-            dynvar_export "${varible_prefix}_GROUP_ID"     "\${${varible_prefix}_GROUP_NAME}"
+            volume_suffix_module_ext=""
         else
-            dynvar_export "${varible_prefix}_GROUP_ID"     "\$( getent group \${${varible_prefix}_GROUP_NAME} | cut -d: -f3)"
+            volume_suffix_module_ext="${service_name}"
         fi
     fi
 
-    dynvar_export "${varible_prefix}_CONTEXT_PATH"    "/${APPL_NAME}/\${${varible_prefix}_NAME}/"
     
+    module_lib_name="$( module_lib_name_get "${module_name}")"
 
-#    dynvar_export "${varible_prefix}_" "${varible_prefix}_${}"
+    if [[ "${module_lib_name}" != /* ]]
+    then
+        path_prefix="/var/lib/"
+    else
+        path_prefix=""
+    fi
+    
+    module_lib_path=${path_prefix}${module_lib_name}
+
+
+    module_log_name="$( module_log_name_get "${module_name}")"
+
+    if [[ "${module_log_name}" != /* ]]
+    then
+        path_prefix="/var/log/"
+    else
+        path_prefix=""
+    fi
+    
+    module_log_path=${path_prefix}${module_log_name}
+
+    
+    dynvar_export "${varible_prefix}_LIB_INT"            "${module_lib_path}"
+    dynvar_export "${varible_prefix}_LIB_EXT"            "$( psfix_cat "${volume_prefix}${module_lib_path}"          "-" "${volume_suffix_module_ext}")"
+    
+    
+    dynvar_export "${varible_prefix}_LOG_INIT_INT"       "/var/log/init"
+    dynvar_export "${varible_prefix}_LOG_INIT_EXT"       "$( psfix_cat "${volume_prefix}/var/log/init"               "-" "${volume_suffix_initsv_ext}")"
+
+    dynvar_export "${varible_prefix}_LOG_SV_INT"         "/var/log/supervisor"
+    dynvar_export "${varible_prefix}_LOG_SV_EXT"         "$( psfix_cat "${volume_prefix}/var/log/supervisor"         "-" "${volume_suffix_initsv_ext}")"
+
+    dynvar_export "${varible_prefix}_LOG_MAIN_INT"       "${module_log_path}"
+    dynvar_export "${varible_prefix}_LOG_MAIN_EXT"       "$( psfix_cat "${volume_prefix}${module_log_path}"          "-" "${volume_suffix_module_ext}")"
+
+    
+    
+    # Ports
+    
+    if [[ "${port_main_int}" != "-" ]]
+    then
+        dynvar_export "${varible_prefix}_PORT_MAIN_INT"  "${port_main_int}"
+        dynvar_export "${varible_prefix}_PORT_MAIN_EXT"  "\$(( ${port_main_ext} + ${PORT_ENV_OFFSET}))"
+    fi
+    
+    if [[ "${PORT_SV_INT}" != "" ]]
+    then
+        dynvar_export "${varible_prefix}_PORT_SV_INT"    "${PORT_SV_INT}"
+        dynvar_export "${varible_prefix}_PORT_SV_EXT"    "\$(( \${${varible_prefix}_PORT_MAIN_EXT} + ${PORT_SV_OFFSET}))"
+    fi
+        
+    if [[ "${port_admin_int}" != "-" ]]
+    then
+        dynvar_export "${varible_prefix}_PORT_ADMIN_INT" "${port_admin_int}"
+        dynvar_export "${varible_prefix}_PORT_ADMIN_EXT" "\$(( ${port_admin_ext} + ${PORT_ENV_OFFSET}))"        
+    fi
+
+    
+    # User & Group
+
+    if [[ "${user_name_id}" == "-" ]]
+    then
+        user_name="-"
+        user_id="-"
+    else
+        if [[ "${DOCKER_TOOLS_USER_GROUP_FORCE}" == "TRUE" ]]
+        then
+            user_name_id=$( id -u)
+        fi
+        
+        if [[ "${user_name_id}" =~ ^[0-9]+$ ]]
+        then
+            user_name="-"
+            user_id="${user_name_id}"
+        else
+            user_name="${user_name_id}"
+            user_id="$( id -u "${user_name}")"
+        fi        
+    fi
+    
+    dynvar_export "${varible_prefix}_USER_NAME"          "${user_name}"
+    dynvar_export "${varible_prefix}_USER_ID"            "${user_id}"
+
+    
+    if [[ "${group_name_id}" == "-" ]]
+    then
+        group_name="-"
+        group_id="-"
+    else
+        if [[ "${DOCKER_TOOLS_USER_GROUP_FORCE}" == "TRUE" ]]
+        then
+            group_name_id=$( id -g)
+        fi
+        
+        if [[ "${group_name_id}" =~ ^[0-9]+$ ]]
+        then
+            group_name="-"
+            group_id="${group_name_id}"
+        else
+            group_name="${group_name_id}"
+            group_id="$( getent group "${group_name}" | cut -d: -f3)"
+        fi        
+    fi
+    
+    dynvar_export "${varible_prefix}_GROUP_NAME"          "${group_name}"
+    dynvar_export "${varible_prefix}_GROUP_ID"            "${group_id}"
+}
+
+
+
+#-------------------------------------------------------------------------------
+function docker_config_add
+{
+    config_file_target="$1"
+    config_file_source="$2"
+
+
+    CONFIG_FILE_LIST+=" ${config_file_target}:${config_file_source}"
 }
 
 
@@ -124,8 +347,37 @@ fi
 
 
 >${APPL_HOME_DIR}/.env
+ENV_SED=""
+ENV_NET_SED=""
 
 for var in $( ( grep "^ *[a-zA-Z0-9_-]*=" ${APPL_HOME_DIR}/env | sed -e "s/=.*//" -e "s/ *//"; echo ${DYNVAR_LIST} | sed -e 's/ /\n/g') | sort -u)
 do
-    echo "${var}='${!var}'" >>${APPL_HOME_DIR}/.env
+    echo "${var}='${!var}'"               >>${APPL_HOME_DIR}/.env
+
+    
+    pat="s/\${${var}}/${!var//\//\\/}/g
+"
+    ENV_SED="${ENV_SED}${pat}"
+    
+    if [[ ${var} =~ _HOST_ ]] || ( [[ ${var} =~ _PORT_  ]] && [[ ${var} =~ _INT  ]])
+    then
+       ENV_NET_SED="${ENV_NET_SED}${pat}"
+    fi
+done
+
+echo ENV_NET_SED=\'"${ENV_NET_SED}"\'           >>${APPL_HOME_DIR}/.env
+
+
+
+for tupple in ${CONFIG_FILE_LIST}
+do
+    IFS=":"
+    set ${tupple}
+
+    config_file_target="$1"
+    config_file_source="$2"
+    IFS=" "
+
+
+    sed <${config_file_source} >${config_file_target} -e "${ENV_SED}"
 done

sbin/docker_network_down

@@ -0,0 +1,25 @@
+#!/bin/bash
+#-------------------------------------------------------------------------------
+
+set -o errexit
+
+APPL_HOME_DIR="$(dirname "$(dirname "$0")")"
+
+
+
+#-------------------------------------------------------------------------------
+
+. .env
+
+if  [[ "${NETWORK_TABLE}" != "" ]]
+then
+    if [[ "$( ip rule list | grep "from ${NETWORK_ADDRESS}")" != "" ]]
+    then
+        ip rule del from ${NETWORK_ADDRESS}
+    fi
+
+    if [[ "$( ip route list table ${NETWORK_TABLE} | grep "${NETWORK_SUBNET}")" != "" ]]
+    then
+        ip route del ${NETWORK_SUBNET} table ${NETWORK_TABLE}
+    fi
+fi

sbin/docker_network_up

@@ -0,0 +1,21 @@
+#!/bin/bash
+#-------------------------------------------------------------------------------
+
+set -o errexit
+
+APPL_HOME_DIR="$(dirname "$(dirname "$0")")"
+
+
+
+#-------------------------------------------------------------------------------
+
+. .env
+
+if  [[ "${NETWORK_TABLE}" != "" ]]
+then
+    sbin/docker_network_down
+    
+    ip rule add from ${NETWORK_ADDRESS} table ${NETWORK_TABLE}
+
+    ip route add ${NETWORK_SUBNET} dev ${NETWORK_IF_NAME} table ${NETWORK_TABLE}
+fi

sbin/docker_start

@@ -13,3 +13,5 @@ sbin/docker_mk_env
 
 docker compose pull
 docker compose up -d
+
+sbin/docker_network_up

sbin/docker_stop

@@ -10,3 +10,5 @@ APPL_HOME_DIR="$(dirname "$(dirname "$0")")"
 #-------------------------------------------------------------------------------
 
 docker compose down
+
+sbin/docker_network_down

sbin/docker_tools_install

@@ -0,0 +1,48 @@
+#!/bin/bash
+#-------------------------------------------------------------------------------
+
+set -o errexit
+
+DOCKER_TOOLS_HOME_DIR="$(dirname "$(dirname "$0")")"
+
+if [[ "$1" == "" ]]
+then
+    APPL_HOME_DIR="$PWD"
+else
+    APPL_HOME_DIR="$1"
+fi
+
+
+
+#-------------------------------------------------------------------------------
+function link_create
+{
+    source="$1"
+    target="$2"
+
+    if [[ -d "$target" ]]
+    then
+        real_target=${target}/$( basename "${source}")
+    else
+        real_target=${target}
+    fi
+    
+    if [[ -e "${real_target}" ]]
+    then
+        mv ${real_target} ${real_target}.old
+    fi
+
+    ln -s ${source} ${target}
+}
+
+
+
+#-------------------------------------------------------------------------------
+
+DOCKER_TOOLS_HOME_DIR=$( realpath --relative-to ${APPL_HOME_DIR} ${DOCKER_TOOLS_HOME_DIR})
+cd ${APPL_HOME_DIR}
+
+
+link_create ${DOCKER_TOOLS_HOME_DIR}/sbin .
+
+link_create env.dist env