diff --git a/scripts/run_in_container.sh b/scripts/run_in_container.sh
new file mode 100755
index 0000000..21e2787
--- /dev/null
+++ b/scripts/run_in_container.sh
@@ -0,0 +1,83 @@
+#!/bin/bash -eu
+readonly SCRIPT_DIR="$(cd -P -- "$(dirname -- "$0")" && pwd -P)"
+declare DIR_NAME=""
+
+function check_env_vars(){ 
+    local AZURE_VARS="azure_client_id azure_client_secret azure_location azure_resource_group_name azure_storage_account azure_subscription_id azure_tenant_id azure_object_id windows_appveyor_password DESCR"
+
+    for v in GITHUB_API_TOKEN TEMPLATE ${AZURE_VARS}; do
+        echo "$v"
+        # echo "\$$v $(eval echo \$$v)"
+        [ -z ${!v+x} ] && { echo "Error: Please define $v variable."; return 10; }
+    done
+}
+
+function check_dependencies() {
+    type curl unzip tar sort uniq head ||
+        { echo "One of dependencies missed." 1>&2; return 10; }
+}
+
+function install_packer() {
+    local VERSION=$1
+    local ZIPNAME=packer_${VERSION}_linux_amd64.zip
+    curl -fsSL -O https://releases.hashicorp.com/packer/${VERSION}/${ZIPNAME} &&
+    unzip -q -o ${ZIPNAME} -d "$SCRIPT_DIR" ||
+        { echo "[ERROR] Cannot download and unzip packer." 1>&2; return 10; }
+    packer --version
+    # cleanup
+    [ -f "${ZIPNAME}" ] && rm -f "${ZIPNAME}" || true
+}
+
+function download_build_images() {
+    local -r OWNER=appveyor
+    local -r REPO=build-images
+
+    local VERSION=$1
+    local ZIPNAME=${VERSION}.tar.gz
+    local AUTH="Authorization: token $GITHUB_API_TOKEN"
+
+    # Validate token.
+    curl -o /dev/null -sH "$AUTH" "https://api.github.com/repos/$OWNER/$REPO" || { echo "Error: Invalid repo, token or network issue";  exit 1; }
+
+    curl -vLJ -H 'Accept: application/octet-stream' -H "$AUTH" "https://github.com/${OWNER}/${REPO}/archive/${ZIPNAME}" -o "$ZIPNAME" &&
+    tar -zxf "$ZIPNAME" ||
+        { echo "[ERROR] Cannot download and untar $REPO." 1>&2; return 10; }
+
+    DIR_NAME=$(tar -ztf ${TAR_FILE} |cut -d'/' -f1|sort|uniq|head -n1)
+    cd -- "${DIR_NAME}" ||
+        { echo "[ERROR] Cannot change directory to ${DIR_NAME}." 1>&2; return 20; }
+    cd -
+}
+
+function run_packer() {
+    cd -- "${DIR_NAME}" ||
+        { echo "[ERROR] Cannot change directory to ${DIR_NAME}." 1>&2; return 20; }
+
+    if [ ! -f "$TEMPLATE.json" ]; then
+        echo "[ERROR] There is no '$TEMPLATE.json' template. Aborting build."
+        exit 10
+    fi
+
+    DATEMARK=$(date +%Y%m%d%H%M%S)
+    DESCR="build N ${APPVEYOR_BUILD_NUMBER}, ${APPVEYOR_REPO_COMMIT:0:7}, ${APPVEYOR_REPO_COMMIT_MESSAGE}"
+
+    PACKER_LOG_PATH=./packer-${DATEMARK}.log PACKER_LOG=1 "$SCRIPT_DIR/packer" build --only= \
+        -var "azure_client_id=${azure_client_id}" \
+        -var "azure_client_secret=${azure_client_secret}" \
+        -var "azure_location=${azure_location}" \
+        -var "azure_resource_group_name=${azure_resource_group_name}" \
+        -var "azure_storage_account=${azure_storage_account}" \
+        -var "azure_subscription_id=${azure_subscription_id}" \
+        -var "azure_tenant_id=${azure_tenant_id}" \
+        -var "azure_object_id=${azure_object_id}" \
+        -var "windows_appveyor_password=${windows_appveyor_password}" \
+        -var "image_description=${DESCR}" \
+        "$TEMPLATE.json"
+}
+
+# main
+check_env_vars
+check_dependencies
+install_packer 1.3.3
+download_build_images 0.1
+run_packer