Add necessary functions to allow upgrade using installation assistant

.github/actions/ghcr-pull-and-push/build_and_push_image_to_ghcr.sh

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+GITHUB_PUSH_SECRET=$1
+GITHUB_USER=$2
+DOCKER_IMAGE_NAME=$3
+BUILD_CONTEXT=$4
+DOCKERFILE_PATH="$BUILD_CONTEXT/Dockerfile"
+if [ -n "$5" ]; then
+    DOCKER_IMAGE_TAG=$5
+else 
+    DOCKER_IMAGE_TAG="latest"
+fi
+GITHUB_REPOSITORY="wazuh/wazuh-packages"
+GITHUB_OWNER="wazuh"
+IMAGE_ID=ghcr.io/${GITHUB_OWNER}/${DOCKER_IMAGE_NAME}:${DOCKER_IMAGE_TAG}
+IMAGE_ID=$(echo ${IMAGE_ID} | tr '[A-Z]' '[a-z]')
+
+# Login to GHCR
+echo ${GITHUB_PUSH_SECRET} | docker login https://ghcr.io -u $GITHUB_USER --password-stdin
+
+# Build image
+echo build -t ${IMAGE_ID} -f ${DOCKERFILE_PATH} ${BUILD_CONTEXT}
+docker build -t ${IMAGE_ID} -f ${DOCKERFILE_PATH} ${BUILD_CONTEXT}
+docker push ${IMAGE_ID}

.github/actions/ghcr-pull-and-push/pull_image_from_ghcr.sh

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+GITHUB_PUSH_SECRET=$1
+GITHUB_USER=$2
+DOCKER_IMAGE_NAME=$3
+if [ -n "$4" ]; then
+    DOCKER_IMAGE_TAG="$4"
+else
+    DOCKER_IMAGE_TAG="latest"
+fi
+GITHUB_REPOSITORY="wazuh/wazuh-packages"
+GITHUB_OWNER="wazuh"
+IMAGE_ID=ghcr.io/${GITHUB_OWNER}/${DOCKER_IMAGE_NAME}:${DOCKER_IMAGE_TAG}
+IMAGE_ID=$(echo ${IMAGE_ID} | tr '[A-Z]' '[a-z]')
+
+# Login to GHCR
+echo ${GITHUB_PUSH_SECRET} | docker login https://ghcr.io -u $GITHUB_USER --password-stdin
+
+# Pull and rename image
+docker pull ${IMAGE_ID}
+docker image tag ghcr.io/${GITHUB_OWNER}/${DOCKER_IMAGE_NAME}:${DOCKER_IMAGE_TAG} ${DOCKER_IMAGE_NAME}:${DOCKER_IMAGE_TAG}

.github/actions/offline-installation/common.sh

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+#!/bin/bash
+
+function check_package() {
+
+    if [ "${sys_type}" == "deb" ]; then
+        if ! apt list --installed 2>/dev/null | grep -q "${1}"; then
+            echo "INFO: The package "${1}" is not installed."
+            return 1
+        fi
+    elif [ "${sys_type}" == "rpm" ]; then
+        if ! yum list installed 2>/dev/null | grep -q "${1}"; then
+            echo "INFO: The package "${1}" is not installed."
+            return 1
+        fi
+    fi
+    return 0
+
+}
+
+function check_system() {
+
+    if [ -n "$(command -v yum)" ]; then
+        sys_type="rpm"
+        echo "INFO: RPM system detected."
+    elif [ -n "$(command -v apt-get)" ]; then
+        sys_type="deb"
+        echo "INFO: DEB system detected."
+    else
+        echo "ERROR: could not detect the system."
+        exit 1
+    fi
+
+}
+
+function check_file() {
+
+    if [ ! -f "${1}" ]; then
+        echo "ERROR: The ${1} file could not be downloaded."
+        exit 1
+    fi
+
+}
+
+function check_shards() {
+
+    retries=0
+    until [ "$(curl -s -k -u admin:admin "https://localhost:9200/_template/wazuh?pretty&filter_path=wazuh.settings.index.number_of_shards" | grep "number_of_shards")" ] || [ "${retries}" -eq 5 ]; do
+        sleep 5
+        retries=$((retries+1))
+    done
+
+    if [ ${retries} -eq 5 ]; then
+        echo "ERROR: Could not get the number of shards."
+        exit 1
+    fi
+    curl -s -k -u admin:admin "https://localhost:9200/_template/wazuh?pretty&filter_path=wazuh.settings.index.number_of_shards"
+    echo "INFO: Number of shards detected."
+
+}
+
+function dashboard_installation() {
+
+    install_package "wazuh-dashboard"
+    check_package "wazuh-dashboard"
+
+    echo "INFO: Generating certificates of the Wazuh dashboard..."
+    NODE_NAME=dashboard
+    mkdir /etc/wazuh-dashboard/certs
+    mv -n wazuh-certificates/$NODE_NAME.pem /etc/wazuh-dashboard/certs/dashboard.pem
+    mv -n wazuh-certificates/$NODE_NAME-key.pem /etc/wazuh-dashboard/certs/dashboard-key.pem
+    cp wazuh-certificates/root-ca.pem /etc/wazuh-dashboard/certs/
+    chmod 500 /etc/wazuh-dashboard/certs
+    chmod 400 /etc/wazuh-dashboard/certs/*
+    chown -R wazuh-dashboard:wazuh-dashboard /etc/wazuh-dashboard/certs
+
+    if [ "${sys_type}" == "deb" ]; then
+        enable_start_service "wazuh-dashboard"
+    elif [ "${sys_type}" == "rpm" ]; then
+        /usr/share/wazuh-dashboard/bin/opensearch-dashboards "-c /etc/wazuh-dashboard/opensearch_dashboards.yml" --allow-root > /dev/null 2>&1 &
+    fi  
+
+    sleep 10
+    # In this context, 302 HTTP code refers to SSL certificates warning: success. 
+    if [ "$(curl -k -s -I -w "%{http_code}" https://localhost -o /dev/null --fail)" -ne "302" ]; then
+        echo "ERROR: The Wazuh dashboard installation has failed."
+        exit 1
+    fi
+    echo "INFO: The Wazuh dashboard is ready."
+
+}
+
+function download_resources() {
+
+    check_file "${ABSOLUTE_PATH}"/wazuh-install.sh 
+    bash "${ABSOLUTE_PATH}"/wazuh-install.sh -dw "${sys_type}"
+    echo "INFO: Downloading the resources..."
+
+    curl -sO https://packages.wazuh.com/4.3/config.yml
+    check_file "config.yml"
+
+    sed -i -e '0,/<indexer-node-ip>/ s/<indexer-node-ip>/127.0.0.1/' config.yml
+    sed -i -e '0,/<wazuh-manager-ip>/ s/<wazuh-manager-ip>/127.0.0.1/' config.yml
+    sed -i -e '0,/<dashboard-node-ip>/ s/<dashboard-node-ip>/127.0.0.1/' config.yml
+
+    curl -sO https://packages.wazuh.com/4.3/wazuh-certs-tool.sh
+    check_file "wazuh-certs-tool.sh"
+    chmod 744 wazuh-certs-tool.sh
+    ./wazuh-certs-tool.sh --all
+
+    tar xf wazuh-offline.tar.gz
+    echo "INFO: Download finished."
+
+    if [ ! -d ./wazuh-offline ]; then
+        echo "ERROR: Could not download the resources."
+        exit 1
+    fi
+
+}
+
+function enable_start_service() {
+
+    systemctl daemon-reload
+    systemctl enable "${1}"
+    systemctl start "${1}"
+
+    retries=0
+    until [ "$(systemctl status "${1}" | grep "active")" ] || [ "${retries}" -eq 3 ]; do
+        sleep 2
+        retries=$((retries+1))
+        systemctl start "${1}"
+    done
+
+    if [ ${retries} -eq 3 ]; then
+        echo "ERROR: The "${1}" service could not be started."
+        exit 1
+    fi
+
+}
+
+function filebeat_installation() {
+
+    install_package "filebeat"
+    check_package "filebeat"
+
+    cp ./wazuh-offline/wazuh-files/filebeat.yml /etc/filebeat/ &&\
+    cp ./wazuh-offline/wazuh-files/wazuh-template.json /etc/filebeat/ &&\
+    chmod go+r /etc/filebeat/wazuh-template.json
+
+    sed -i 's|\("index.number_of_shards": \)".*"|\1 "1"|' /etc/filebeat/wazuh-template.json
+    filebeat keystore create
+    echo admin | filebeat keystore add username --stdin --force
+    echo admin | filebeat keystore add password --stdin --force
+    tar -xzf ./wazuh-offline/wazuh-files/wazuh-filebeat-0.2.tar.gz -C /usr/share/filebeat/module
+
+    echo "INFO: Generating certificates of Filebeat..."
+    NODE_NAME=wazuh-1
+    mkdir /etc/filebeat/certs
+    mv -n wazuh-certificates/$NODE_NAME.pem /etc/filebeat/certs/filebeat.pem
+    mv -n wazuh-certificates/$NODE_NAME-key.pem /etc/filebeat/certs/filebeat-key.pem
+    cp wazuh-certificates/root-ca.pem /etc/filebeat/certs/
+    chmod 500 /etc/filebeat/certs
+    chmod 400 /etc/filebeat/certs/*
+    chown -R root:root /etc/filebeat/certs
+
+    if [ "${sys_type}" == "deb" ]; then
+        enable_start_service "filebeat"
+    elif [ "${sys_type}" == "rpm" ]; then
+        /usr/share/filebeat/bin/filebeat --environment systemd -c /etc/filebeat/filebeat.yml --path.home /usr/share/filebeat --path.config /etc/filebeat --path.data /var/lib/filebeat --path.logs /var/log/filebeat &
+    fi    
+
+    sleep 10
+    check_shards
+    eval "filebeat test output"
+    if [ "${PIPESTATUS[0]}" != 0 ]; then
+        echo "ERROR: The Filebeat installation has failed."
+        exit 1
+    fi
+
+}
+
+function indexer_initialize() {
+
+    retries=0
+    until [ "$(cat /var/log/wazuh-indexer/wazuh-cluster.log | grep "Node started")" ] || [ "${retries}" -eq 5 ]; do
+        sleep 5
+        retries=$((retries+1))
+    done
+
+    if [ ${retries} -eq 5 ]; then
+        echo "ERROR: The indexer node is not started."
+        exit 1
+    fi
+    /usr/share/wazuh-indexer/bin/indexer-security-init.sh
+
+}
+
+function indexer_installation() {
+
+    if [ "${sys_type}" == "rpm" ]; then
+        rpm --import ./wazuh-offline/wazuh-files/GPG-KEY-WAZUH
+    fi
+
+    install_package "wazuh-indexer" 
+    check_package "wazuh-indexer"
+
+    echo "INFO: Generating certificates of the Wazuh indexer..."
+    NODE_NAME=node-1
+    mkdir /etc/wazuh-indexer/certs
+    mv -n wazuh-certificates/$NODE_NAME.pem /etc/wazuh-indexer/certs/indexer.pem
+    mv -n wazuh-certificates/$NODE_NAME-key.pem /etc/wazuh-indexer/certs/indexer-key.pem
+    mv wazuh-certificates/admin-key.pem /etc/wazuh-indexer/certs/
+    mv wazuh-certificates/admin.pem /etc/wazuh-indexer/certs/
+    cp wazuh-certificates/root-ca.pem /etc/wazuh-indexer/certs/
+    chmod 500 /etc/wazuh-indexer/certs
+    chmod 400 /etc/wazuh-indexer/certs/*
+    chown -R wazuh-indexer:wazuh-indexer /etc/wazuh-indexer/certs
+
+    sed -i 's|\(network.host: \)"0.0.0.0"|\1"127.0.0.1"|' /etc/wazuh-indexer/opensearch.yml
+
+    if [ "${sys_type}" == "rpm" ]; then
+        runuser "wazuh-indexer" --shell="/bin/bash" --command="OPENSEARCH_PATH_CONF=/etc/wazuh-indexer /usr/share/wazuh-indexer/bin/opensearch" > /dev/null 2>&1 &
+        sleep 5
+    elif [ "${sys_type}" == "deb" ]; then
+        enable_start_service "wazuh-indexer"
+    fi
+
+    indexer_initialize
+    sleep 10
+    eval "curl -s -XGET https://localhost:9200 -u admin:admin -k --fail"
+    if [ "${PIPESTATUS[0]}" != 0 ]; then
+        echo "ERROR: The Wazuh indexer installation has failed."
+        exit 1
+    fi
+
+}
+
+function install_dependencies() {
+
+    if [ "${sys_type}" == "rpm" ]; then
+        dependencies=( util-linux initscripts openssl )
+        not_installed=()
+        for dep in "${dependencies[@]}"; do
+            if [ "${dep}" == "openssl" ]; then
+                if ! yum list installed 2>/dev/null | grep -q "${dep}\.";then
+                    not_installed+=("${dep}")
+                fi
+            elif ! yum list installed 2>/dev/null | grep -q "${dep}";then
+                not_installed+=("${dep}")
+            fi
+        done
+
+        if [ "${#not_installed[@]}" -gt 0 ]; then
+            echo "--- Dependencies ---"
+            for dep in "${not_installed[@]}"; do
+                echo "Installing $dep."
+                eval "yum install ${dep} -y"
+                if [  "${PIPESTATUS[0]}" != 0  ]; then
+                    echo "ERROR: Cannot install dependency: ${dep}."
+                    exit 1
+                fi
+            done
+        fi
+
+    elif [ "${sys_type}" == "deb" ]; then
+        eval "apt-get update -q > /dev/null"
+        dependencies=( openssl )
+        not_installed=()
+
+        for dep in "${dependencies[@]}"; do
+            if ! apt list --installed 2>/dev/null | grep -q "${dep}"; then
+                not_installed+=("${dep}")
+            fi
+        done
+
+        if [ "${#not_installed[@]}" -gt 0 ]; then
+            echo "--- Dependencies ----"
+            for dep in "${not_installed[@]}"; do
+                echo "Installing $dep."
+                apt-get install -y "${dep}"
+                if [ "${install_result}" != 0 ]; then
+                    echo "ERROR: Cannot install dependency: ${dep}."
+                    exit 1
+                fi
+            done
+        fi
+    fi
+
+}
+
+function install_package() {
+
+    if [ "${sys_type}" == "deb" ]; then
+        dpkg -i ./wazuh-offline/wazuh-packages/"${1}"*.deb
+    elif [ "${sys_type}" == "rpm" ]; then
+        rpm -ivh ./wazuh-offline/wazuh-packages/"${1}"*.rpm
+    fi    
+
+}
+
+function manager_installation() {
+
+    install_package "wazuh-manager"
+    check_package "wazuh-manager"
+
+    if [ "${sys_type}" == "deb" ]; then
+        enable_start_service "wazuh-manager"
+    elif [ "${sys_type}" == "rpm" ]; then
+        /var/ossec/bin/wazuh-control start
+    fi 
+
+}

.github/actions/offline-installation/offline-installation.sh

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+#!/bin/bash
+
+# Gets the absolute path of the script, used to load the common.sh file
+ABSOLUTE_PATH="$( cd $(dirname ${0}) ; pwd -P )"
+. ${ABSOLUTE_PATH}/common.sh
+
+check_system
+install_dependencies
+download_resources
+
+indexer_installation
+echo "INFO: Wazuh indexer installation completed."
+
+manager_installation
+echo "INFO: Wazuh manager installation completed."
+
+filebeat_installation
+echo "INFO: Filebeat installation completed."
+
+dashboard_installation
+echo "INFO: Wazuh dashboard installation completed."