feat(bootstrap): CDash CI

Signed-off-by: pmikus <peter.mikus@protonmail.ch>
Change-Id: Ia9f5b1c9036b9f09c4d9bb041a41e9b49d2ead7f

5 files changed, 336 insertions, 288 deletions

diff --git a/resources/libraries/bash/function/common.sh b/resources/libraries/bash/function/common.sh
index b1979174e5..d98db18149 100644
--- a/resources/libraries/bash/function/common.sh
+++ b/resources/libraries/bash/function/common.sh
@@ -640,6 +640,8 @@ function prepare_topology () {
     # - TEST_CODE - String affecting test selection, usually jenkins job name.
     # - NODENESS - Node multiplicity of testbed, either "2n" or "3n".
     # - FLAVOR - Node flavor string, e.g. "clx" or "skx".
+    # Variables set:
+    # - TERRAFORM_MODULE_DIR - Terraform module directory.
     # Functions called:
     # - die - Print to stderr and exit.
     # - terraform_init - Terraform init topology.
@@ -651,7 +653,11 @@ function prepare_topology () {
     case "${case_text}" in
         "1n_aws" | "2n_aws" | "3n_aws")
             export TF_VAR_testbed_name="${TEST_CODE}"
+            TERRAFORM_MODULE_DIR="terraform-aws-${NODENESS}-${FLAVOR}-c5n"
             terraform_init || die "Failed to call terraform init."
+            trap 'terraform_destroy' ERR || {
+                die "Trap attempt failed, please cleanup manually. Aborting!"
+            }
             terraform_apply || die "Failed to call terraform apply."
             ;;
     esac
@@ -1197,7 +1203,8 @@ function untrap_and_unreserve_testbed () {
     # Variables read (by inner function):
     # - WORKING_TOPOLOGY - Path to topology yaml file of the reserved testbed.
     # - PYTHON_SCRIPTS_DIR - Path to directory holding Python scripts.
-    # Variables written:
+    # Variables set:
+    # - TERRAFORM_MODULE_DIR - Terraform module directory.
     # - WORKING_TOPOLOGY - Set to empty string on successful unreservation.
     # Trap unregistered:
     # - EXIT - Failure to untrap is reported, but ignored otherwise.
@@ -1219,6 +1226,7 @@ function untrap_and_unreserve_testbed () {
         }
         case "${TEST_CODE}" in
             *"1n-aws"* | *"2n-aws"* | *"3n-aws"*)
+                TERRAFORM_MODULE_DIR="terraform-aws-${NODENESS}-${FLAVOR}-c5n"
                 terraform_destroy || die "Failed to call terraform destroy."
                 ;;
             *)
diff --git a/resources/libraries/bash/function/docs.sh b/resources/libraries/bash/function/docs.sh
deleted file mode 100644
index cb3f36d21a..0000000000
--- a/resources/libraries/bash/function/docs.sh
+++ /dev/null
@@ -1,267 +0,0 @@
-#!/usr/bin/env bash
-
-# Copyright (c) 2021 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set -exuo pipefail
-
-
-function die_on_docs_error () {
-
-    # Source this fragment if you want to abort on any failure.
-    #
-    # Variables read:
-    # - DOCS_EXIT_STATUS - Set by a generation function.
-    # Functions called:
-    # - die - Print to stderr and exit.
-
-    set -exuo pipefail
-
-    if [[ "${DOCS_EXIT_STATUS}" != "0" ]]; then
-        die "Failed to generate docs!" "${DOCS_EXIT_STATUS}"
-    fi
-}
-
-function generate_docs () {
-
-    # Generate docs content.
-    #
-    # Variable read:
-    # - ${TOOLS_DIR} - Path to existing resources subdirectory "tools".
-    # Variables set:
-    # - DOCS_EXIT_STATUS - Exit status of docs generation.
-    # Functions called:
-    # - die - Print to stderr and exit.
-
-    set -exuo pipefail
-
-    pushd "${TOOLS_DIR}"/doc_gen || die "Pushd failed!"
-
-    BUILD_DIR="_build"
-
-    # Remove the old build:
-    rm -rf ${BUILD_DIR} || true
-    rm -rf /tmp/tmp-csit* || true
-
-    export WORKING_DIR=$(mktemp -d /tmp/tmp-csitXXX) || die "export failed"
-
-    # Create working directories
-    mkdir -p "${BUILD_DIR}" || die "Mkdir failed!"
-    mkdir -p "${WORKING_DIR}"/resources/libraries/python/ || die "Mkdir failed!"
-    mkdir -p "${WORKING_DIR}"/resources/libraries/robot/ || die "Mkdir failed!"
-    mkdir -p "${WORKING_DIR}"/tests/ || die "Mkdir failed!"
-
-    # Copy the Sphinx source files:
-    cp -r src/* ${WORKING_DIR}/ || die "Copy the Sphinx source files failed!"
-
-    # Copy the source files to be processed:
-    from_dir="${RESOURCES_DIR}/libraries/python/"
-    to_dir="${WORKING_DIR}/resources/libraries/python/"
-    dirs="${from_dir} ${to_dir}"
-    rsync -ar --include='*/' --include='*.py' --exclude='*' ${dirs} || {
-        die "rSync failed!"
-    }
-
-    from_dir="${RESOURCES_DIR}/libraries/robot/"
-    to_dir="${WORKING_DIR}/resources/libraries/robot/"
-    dirs="${from_dir} ${to_dir}"
-    rsync -ar --include='*/' --include '*.robot' --exclude '*' ${dirs} || {
-        die "rSync failed!"
-    }
-    touch ${to_dir}/index.robot || {
-        die "Touch index.robot file failed!"
-    }
-
-    from_dir="${CSIT_DIR}/tests/"
-    to_dir="${WORKING_DIR}/tests/"
-    dirs="${from_dir} ${to_dir}"
-    rsync -ar --include='*/' --include '*.robot' --exclude '*' ${dirs} || {
-        die "rSync failed!"
-    }
-
-    # to remove GPL licence section
-    find "${WORKING_DIR}/tests/" -type f -exec sed -i '/\*\*\*/,$!d' {} \;
-
-    find ${WORKING_DIR}/ -type d -exec echo {} \; -exec touch {}/__init__.py \;
-
-    python3 gen_rst.py || die "Generate .rst files failed!"
-
-    # Generate the documentation:
-    DATE=$(date -u '+%d-%b-%Y') || die "Get date failed!"
-
-    all_options=("-v")
-    all_options+=("-c" "${WORKING_DIR}")
-    all_options+=("-a")
-    all_options+=("-b" "html")
-    all_options+=("-E")
-    all_options+=("-D" "version="${GERRIT_BRANCH:-master}"")
-    all_options+=("${WORKING_DIR}" "${BUILD_DIR}/")
-
-    set +e
-    sphinx-build "${all_options[@]}"
-    DOCS_EXIT_STATUS="$?"
-    set -e
-}
-
-function generate_report () {
-
-    # Generate report content.
-    #
-    # Variable read:
-    # - ${TOOLS_DIR} - Path to existing resources subdirectory "tools".
-    # - ${GERRIT_BRANCH} - Gerrit branch used for release tagging.
-    # Variables set:
-    # - DOCS_EXIT_STATUS - Exit status of report generation.
-    # Functions called:
-    # - die - Print to stderr and exit.
-
-    set -exuo pipefail
-
-    pushd "${TOOLS_DIR}"/presentation || die "Pushd failed!"
-
-    # Set default values in config array.
-    typeset -A CFG
-    typeset -A DIR
-
-    DIR[WORKING]="_tmp"
-
-    # Create working directories.
-    mkdir "${DIR[WORKING]}" || die "Mkdir failed!"
-
-    export PYTHONPATH=`pwd`:`pwd`/../../../ || die "Export failed!"
-
-    all_options=("pal.py")
-    all_options+=("--specification" "specifications/report")
-    all_options+=("--release" "${GERRIT_BRANCH:-master}")
-    all_options+=("--week" $(date "+%V"))
-    all_options+=("--logging" "INFO")
-    all_options+=("--force")
-
-    set +e
-    python "${all_options[@]}"
-    DOCS_EXIT_STATUS="$?"
-    set -e
-
-}
-
-function generate_report_local () {
-
-    # Generate report from local content.
-    #
-    # Variable read:
-    # - ${TOOLS_DIR} - Path to existing resources subdirectory "tools".
-    # - ${CSIT_REPORT_FILENAME} - Source filename.
-    # - ${CSIT_REPORT_DIRECTORYNAME} - Source directory.
-    # - ${CSIT_REPORT_INSTALL_DEPENDENCIES} - Whether to install dependencies.
-    # - ${CSIT_REPORT_INSTALL_LATEX} - Whether to install latex.
-    # Variables set:
-    # - DOCS_EXIT_STATUS - Exit status of report generation.
-    # Functions called:
-    # - die - Print to stderr and exit.
-
-    set -exuo pipefail
-
-    pushd "${TOOLS_DIR}"/presentation || die "Pushd failed!"
-
-    filename="${CSIT_REPORT_FILENAME-}"
-    directoryname="${CSIT_REPORT_DIRECTORYNAME-}"
-    install_dependencies="${CSIT_REPORT_INSTALL_DEPENDENCIES:-1}"
-    install_latex="${CSIT_REPORT_INSTALL_LATEX:-0}"
-
-    # Set default values in config array.
-    typeset -A CFG
-    typeset -A DIR
-
-    DIR[WORKING]="_tmp"
-
-    # Install system dependencies.
-    if [[ ${install_dependencies} -eq 1 ]] ;
-    then
-        sudo apt -y update || die "APT update failed!"
-        sudo apt -y install libxml2 libxml2-dev libxslt-dev \
-            build-essential zlib1g-dev unzip || die "APT install failed!"
-    fi
-
-    if [[ ${install_latex} -eq 1 ]] ;
-    then
-        sudo apt -y update || die "APT update failed!"
-        sudo apt -y install xvfb texlive-latex-recommended \
-            texlive-fonts-recommended texlive-fonts-extra texlive-latex-extra \
-            latexmk wkhtmltopdf inkscape || die "APT install failed!"
-        target="/usr/share/texlive/texmf-dist/web2c/texmf.cnf"
-        sudo sed -i.bak 's/^\(main_memory\s=\s\).*/\110000000/' "${target}" || {
-            die "Patching latex failed!"
-        }
-    fi
-
-    # Create working directories.
-    mkdir "${DIR[WORKING]}" || die "Mkdir failed!"
-
-    export PYTHONPATH=`pwd`:`pwd`/../../../ || die "Export failed!"
-
-    all_options=("pal.py")
-    all_options+=("--specification" "specifications/report_local")
-    all_options+=("--release" "${RELEASE:-master}")
-    all_options+=("--week" "${WEEK:-1}")
-    all_options+=("--logging" "INFO")
-    all_options+=("--force")
-    if [[ ${filename} != "" ]]; then
-        all_options+=("--input-file" "${filename}")
-    fi
-    if [[ ${directoryname} != "" ]]; then
-        all_options+=("--input-directory" "${directoryname}")
-    fi
-
-    set +e
-    python "${all_options[@]}"
-    DOCS_EXIT_STATUS="$?"
-    set -e
-
-}
-
-function generate_trending () {
-
-    # Generate trending content.
-    #
-    # Variable read:
-    # - ${TOOLS_DIR} - Path to existing resources subdirectory "tools".
-    # Variables set:
-    # - DOCS_EXIT_STATUS - Exit status of trending generation.
-    # Functions called:
-    # - die - Print to stderr and exit.
-
-    set -exuo pipefail
-
-    pushd "${TOOLS_DIR}"/presentation || die "Pushd failed!"
-
-    # Set default values in config array.
-    typeset -A DIR
-
-    DIR[WORKING]="_tmp"
-
-    # Create working directories.
-    mkdir "${DIR[WORKING]}" || die "Mkdir failed!"
-
-    export PYTHONPATH=`pwd`:`pwd`/../../../ || die "Export failed!"
-
-    all_options=("pal.py")
-    all_options+=("--specification" "specifications/trending")
-    all_options+=("--logging" "INFO")
-    all_options+=("--force")
-
-    set +e
-    python "${all_options[@]}"
-    DOCS_EXIT_STATUS="$?"
-    set -e
-
-}
diff --git a/resources/libraries/bash/function/eb_version.sh b/resources/libraries/bash/function/eb_version.sh
new file mode 100644
index 0000000000..7e1fdc5b6c
--- /dev/null
+++ b/resources/libraries/bash/function/eb_version.sh
@@ -0,0 +1,158 @@
+#!/usr/bin/env bash
+
+# Copyright (c) 2023 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -exuo pipefail
+
+
+function die_on_error () {
+
+    # Source this fragment if you want to abort on any failure.
+    #
+    # Variables read:
+    # - CODE_EXIT_STATUS - Exit status of report generation.
+    # Functions called:
+    # - die - Print to stderr and exit.
+
+    set -exuo pipefail
+
+    if [[ "${CODE_EXIT_STATUS}" != "0" ]]; then
+        die "Failed to generate docs!" "${CODE_EXIT_STATUS}"
+    fi
+}
+
+
+function eb_version_deploy () {
+
+    # Deploy Elastic Beanstalk CDash content.
+    #
+    # Variable read:
+    # - ${CSIT_DIR} - CSIT main directory.
+    # - ${TERRAFORM_OUTPUT_VAL} - Terraform output value.
+    # Variables set:
+    # - CODE_EXIT_STATUS - Exit status of report generation.
+    # - TERRAFORM_OUTPUT_VAR - Register Terraform output variable name.
+    # Functions called:
+    # - eb_version_verify - Build and verify EB version.
+    # - terraform_apply - Apply EB version by Terraform.
+    # - terraform_output - Get the application name string from Terraform.
+    # - die - Print to stderr and exit.
+
+    set -exuo pipefail
+
+    eb_version_verify || die "Failed to call Elastic Beanstalk verify!"
+    terraform_apply || die "Failed to call Terraform apply!"
+
+    TERRAFORM_OUTPUT_VAR="application_version"
+    terraform_output || die "Failed to call Terraform output!"
+
+    #aws --region eu-central-1 elasticbeanstalk update-environment \
+    #    --environment-name fdio-csit-dash-env \
+    #    --version-label "${TERRAFORM_OUTPUT_VAL}"
+}
+
+
+function eb_version_verify () {
+
+    # Build and verify Elastic Beanstalk CDash integrity.
+    #
+    # Variable read:
+    # - ${CSIT_DIR} - CSIT main directory.
+    # Variables set:
+    # - TERRAFORM_MODULE_DIR - Terraform module sub-directory.
+    # Functions called:
+    # - hugo_init_modules - Initialize Hugo modules.
+    # - hugo_build_site - Build static site with Hugo.
+    # - terraform_init - Initialize Terraform modules.
+    # - terraform_validate - Validate Terraform code.
+    # - die - Print to stderr and exit.
+
+    set -exuo pipefail
+
+    if ! installed zip; then
+        die "Please install zip!"
+    fi
+
+    pushd "${CSIT_DIR}"/csit.infra.dash || die "Pushd failed!"
+    pushd app || die "Pushd failed!"
+    find . -type d -name "__pycache__" -exec rm -rf "{}" \;
+    find . -type d -name ".webassets-cache" -exec rm -rf "{}" \;
+    zip -r ../app.zip . || die "Compress failed!"
+    popd || die "Popd failed!"
+    popd || die "Popd failed!"
+
+    TERRAFORM_MODULE_DIR="terraform-aws-fdio-csit-dash-app-base"
+
+    export TF_VAR_application_version="${BUILD_ID-50}"
+    hugo_init_modules || die "Failed to call Hugo initialize!"
+    hugo_build_site || die "Failed to call Hugo build!"
+    terraform_init || die "Failed to call terraform init!"
+    terraform_validate || die "Failed to call terraform validate!"
+}
+
+
+function generate_report () {
+
+    # Generate report content.
+    #
+    # Variable read:
+    # - ${TOOLS_DIR} - Path to existing resources subdirectory "tools".
+    # - ${GERRIT_BRANCH} - Gerrit branch used for release tagging.
+    # Variables set:
+    # - CODE_EXIT_STATUS - Exit status of report generation.
+    # Functions called:
+    # - die - Print to stderr and exit.
+
+    set -exuo pipefail
+
+    pushd "${TOOLS_DIR}"/presentation || die "Pushd failed!"
+
+    # Set default values in config array.
+    typeset -A CFG
+    typeset -A DIR
+
+    DIR[WORKING]="_tmp"
+
+    # Create working directories.
+    mkdir "${DIR[WORKING]}" || die "Mkdir failed!"
+
+    export PYTHONPATH=`pwd`:`pwd`/../../../ || die "Export failed!"
+
+    all_options=("pal.py")
+    all_options+=("--specification" "specifications/report")
+    all_options+=("--release" "${GERRIT_BRANCH:-master}")
+    all_options+=("--week" $(date "+%V"))
+    all_options+=("--logging" "INFO")
+    all_options+=("--force")
+
+    set +e
+    python "${all_options[@]}"
+    CODE_EXIT_STATUS="$?"
+    set -e
+}
+
+function installed () {
+
+    # Check if the given utility is installed. Fail if not installed.
+    #
+    # Arguments:
+    # - ${1} - Utility to check.
+    # Returns (implicitly):
+    # - 0 - If command is installed.
+    # - 1 - If command is not installed.
+
+    set -exuo pipefail
+
+    command -v "${1}"
+}
diff --git a/resources/libraries/bash/function/hugo.sh b/resources/libraries/bash/function/hugo.sh
new file mode 100644
index 0000000000..b8d4c87df2
--- /dev/null
+++ b/resources/libraries/bash/function/hugo.sh
@@ -0,0 +1,100 @@
+#!/usr/bin/env bash
+
+# Copyright (c) 2023 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -exuo pipefail
+
+
+function go_install () {
+
+    # Install Go.
+
+    go_version="go1.20.2.linux-arm64.tar.gz"
+    go_url="https://go.dev/dl"
+    wget "${go_url}/${go_version}"
+    rm -rf "/usr/local/go"
+    tar -C "/usr/local" -xzf "go1.20.2.linux-arm64.tar.gz"
+    rm "go1.20.2.linux-arm64.tar.gz"
+    export PATH=$PATH:/usr/local/go/bin
+}
+
+
+function hugo_build_site () {
+
+    # Build site via Hugo.
+    #
+    # Variable read:
+    # - ${CSIT_DIR} - CSIT main directory.
+    # Functions called:
+    # - die - Print to stderr and exit.
+
+    if ! installed hugo; then
+        die "Please install Hugo!"
+    fi
+
+    pushd "${CSIT_DIR}"/docs || die "Pushd failed!"
+    hugo || die "Failed to run Hugo build!"
+    popd || die "Popd failed!"
+}
+
+
+function hugo_init_modules () {
+
+    # Initialize Hugo modules.
+    #
+    # Variable read:
+    # - ${CSIT_DIR} - CSIT main directory.
+    # Functions called:
+    # - die - Print to stderr and exit.
+
+    if ! installed hugo; then
+        #die "Please install Hugo!"
+        go_install || die "Failed to install Go!"
+        hugo_install || die "Failed to install Hugo!"
+        terraform_install || die "Failed to install Terraform!"
+    fi
+
+    pushd "${CSIT_DIR}"/docs || die "Pushd failed!"
+    hugo mod get -u || die "Failed to run Hugo mod!"
+    popd || die "Popd failed!"
+}
+
+
+function hugo_install () {
+
+    # Install Hugo Extended.
+
+    hugo_version="v0.111.3/hugo_extended_0.111.3_linux-arm64.deb"
+    hugo_url="https://github.com/gohugoio/hugo/releases/download"
+    hugo_link="${hugo_url}/${hugo_version}"
+    wget -O "hugo.deb" "${hugo_link}" || die "Failed to install Hugo!"
+    dpkg -i "hugo.deb" || die "Failed to install Hugo!"
+    rm "hugo.deb" || die "Failed to install Hugo!"
+}
+
+
+function installed () {
+
+    # Check if the given utility is installed. Fail if not installed.
+    #
+    # Arguments:
+    # - ${1} - Utility to check.
+    # Returns (implicitly):
+    # - 0 - If command is installed.
+    # - 1 - If command is not installed.
+
+    set -exuo pipefail
+
+    command -v "${1}"
+}
diff --git a/resources/libraries/bash/function/terraform.sh b/resources/libraries/bash/function/terraform.sh
index 1766381f75..e47f38937c 100644
--- a/resources/libraries/bash/function/terraform.sh
+++ b/resources/libraries/bash/function/terraform.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-# Copyright (c) 2021 Cisco and/or its affiliates.
+# Copyright (c) 2023 Cisco and/or its affiliates.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at:
@@ -22,8 +22,7 @@ function terraform_apply () {
     #
     # Variable read:
     # - ${CSIT_DIR} - CSIT main directory, where terraform modules are located.
-    # - ${NODENESS} - Node multiplicity of desired testbed.
-    # - ${FLAVOR} - Node flavor string, see common.sh
+    # - ${TERRAFORM_MODULE_DIR} - Terraform module directory.
 
     set -exuo pipefail
 
@@ -32,24 +31,21 @@ function terraform_apply () {
     fi
 
     pushd "${CSIT_DIR}"/fdio.infra.terraform || die "Pushd failed!"
-    pushd "terraform-aws-${NODENESS}-${FLAVOR}-c5n" || die "Pushd failed!"
+    pushd "${TERRAFORM_MODULE_DIR}" || die "Pushd failed!"
     export TF_LOG=INFO
-    trap 'terraform_destroy' ERR || {
-         die "Trap attempt failed, please cleanup manually. Aborting!"
-    }
     terraform apply -no-color -auto-approve  || die "Terraform apply failed!"
     popd || die "Popd failed!"
     popd || die "Popd failed!"
 }
 
+
 function terraform_destroy () {
 
     # Run terraform destroy command to prepare module.
     #
     # Variable read:
     # - ${CSIT_DIR} - CSIT main directory, where terraform modules are located.
-    # - ${NODENESS} - Node multiplicity of desired testbed.
-    # - ${FLAVOR} - Node flavor string, see common.sh
+    # - ${TERRAFORM_MODULE_DIR} - Terraform module directory.
 
     set -exuo pipefail
 
@@ -58,7 +54,7 @@ function terraform_destroy () {
     fi
 
     pushd "${CSIT_DIR}"/fdio.infra.terraform || die "Pushd failed!"
-    pushd "terraform-aws-${NODENESS}-${FLAVOR}-c5n" || die "Pushd failed!"
+    pushd "${TERRAFORM_MODULE_DIR}" || die "Pushd failed!"
     export TF_LOG=INFO
     terraform destroy -auto-approve -no-color || die "Terraform destroy failed!"
     popd || die "Popd failed!"
@@ -72,23 +68,16 @@ function terraform_init () {
     #
     # Variable read:
     # - ${CSIT_DIR} - CSIT main directory, where terraform modules are located.
-    # - ${NODENESS} - Node multiplicity of desired testbed.
-    # - ${FLAVOR} - Node flavor string, see common.sh
+    # - ${TERRAFORM_MODULE_DIR} - Terraform module directory.
 
     set -exuo pipefail
 
     if ! installed terraform; then
-        curl -fsSL https://apt.releases.hashicorp.com/gpg | sudo apt-key add -
-        os="$(lsb_release -cs)" || die "Failed to get OS release!"
-        repo="deb [arch=amd64] https://apt.releases.hashicorp.com ${os} main"
-        sudo apt-add-repository "${repo}" || die "Failed to add repo!"
-        apt update -y
-        apt install -y terraform
-        #die "Please install terraform!"
+        die "Please install terraform!"
     fi
 
     pushd "${CSIT_DIR}"/fdio.infra.terraform || die "Pushd failed!"
-    pushd "terraform-aws-${NODENESS}-${FLAVOR}-c5n" || die "Pushd failed!"
+    pushd "${TERRAFORM_MODULE_DIR}" || die "Pushd failed!"
 
     plugin_url="https://github.com/radekg/terraform-provisioner-ansible/"
     plugin_url+="releases/download/v2.5.0/"
@@ -100,9 +89,69 @@ function terraform_init () {
     wget -O "${plugin_path}" "${plugin_url}" || die "Failed to download plugin!"
     chmod +x "${plugin_path}" || die "Failed to add execute rights!"
 
+    rm -f terraform.tfstate || die "Failed to clear terraform state!"
     export TF_LOG=INFO
     terraform init || die "Failed to run terraform init!"
+    popd || die "Popd failed!"
+    popd || die "Popd failed!"
+}
+
+
+function terraform_install () {
+
+    # Install terraform.
+
+    terraform_version="1.4.2/terraform_1.4.2_linux_arm64.zip"
+    terraform_url="https://releases.hashicorp.com/terraform"
+    terraform_link="${terraform_url}/${terraform_version}"
+    wget "${terraform_link}" || die "Failed to install Terraform!"
+    unzip "terraform_1.4.2_linux_arm64.zip" || die "Failed to install Terraform!"
+    mv "terraform" "/usr/local/bin" || die "Failed to install Terraform!"
+    rm "terraform_1.4.2_linux_arm64.zip" || die "Failed to install Terraform!"
+}
+
 
+function terraform_output () {
+
+    # Run terraform output command to prepare module.
+    #
+    # Variable read:
+    # - ${CSIT_DIR} - CSIT main directory, where terraform modules are located.
+    # - ${TERRAFORM_MODULE_DIR} - Terraform module directory.
+    # - ${TERRAFORM_OUTPUT_VAR} - Terraform variable to export.
+
+    set -exuo pipefail
+
+    if ! installed terraform; then
+        die "Please install terraform!"
+    fi
+
+    pushd "${CSIT_DIR}"/fdio.infra.terraform || die "Pushd failed!"
+    pushd "${TERRAFORM_MODULE_DIR}" || die "Pushd failed!"
+    TERRAFORM_OUTPUT_VAL=$(terraform output --raw "${TERRAFORM_OUTPUT_VAR}")
+    popd || die "Popd failed!"
+    popd || die "Popd failed!"
+}
+
+
+function terraform_validate () {
+
+    # Run terraform validate command to prepare module.
+    #
+    # Variable read:
+    # - ${CSIT_DIR} - CSIT main directory, where terraform modules are located.
+    # - ${TERRAFORM_MODULE_DIR} - Terraform module directory.
+
+    set -exuo pipefail
+
+    if ! installed terraform; then
+        die "Please install terraform!"
+    fi
+
+    pushd "${CSIT_DIR}"/fdio.infra.terraform || die "Pushd failed!"
+    pushd "${TERRAFORM_MODULE_DIR}" || die "Pushd failed!"
+    export TF_LOG=INFO
+    terraform validate || die "Terraform validate failed!"
     popd || die "Popd failed!"
     popd || die "Popd failed!"
 }