Change image build process

.env

@@ -1,3 +1,4 @@
 WAZUH_VERSION=5.0.0
 WAZUH_IMAGE_VERSION=5.0.0
 WAZUH_REGISTRY=docker.io
+IMAGE_TAG=5.0.0

build-docker-images/build-images.sh

@@ -166,52 +166,23 @@ build() {
     fi
 
 
-    # Function to get component-specific commit reference
-    get_component_commit() {
-        local component=$1
-        case "${component}" in
-            wazuh-indexer)
-                echo "${INDEXER_COMMIT}"
-                ;;
-            wazuh-manager)
-                echo "${MANAGER_COMMIT}"
-                ;;
-            wazuh-dashboard)
-                echo "${DASHBOARD_COMMIT}"
-                ;;
-            wazuh-agent)
-                echo "${AGENT_COMMIT}"
-                ;;
-            *)
-                echo ""
-                ;;
-        esac
-    }
-
-    # Global env file (without IMAGE_TAG - will be component-specific)
+    # Write the global .env file used by deployment compose files.
+    # IMAGE_TAG here reflects a non-dev, non-per-component tag for reference.
+    local base_tag="${WAZUH_IMAGE_VERSION}${WAZUH_DEV_STAGE:+-${WAZUH_DEV_STAGE,,}}"
     echo WAZUH_VERSION=$WAZUH_IMAGE_VERSION > ../.env
     echo WAZUH_IMAGE_VERSION=$WAZUH_IMAGE_VERSION >> ../.env
     echo WAZUH_REGISTRY=$WAZUH_REGISTRY >> ../.env
+    echo IMAGE_TAG=${base_tag} >> ../.env
 
     set -a
     source ../.env
     source ./artifacts_env.txt
     set +a
 
-    # Define all available components
-    local all_components=("wazuh-indexer" "wazuh-manager" "wazuh-dashboard" "wazuh-agent")
-    local components_to_build=()
-
-    # Determine which components to build
-    if [ -z "${WAZUH_COMPONENT}" ]; then
-        echo "No component specified. Building all components..."
-        components_to_build=("${all_components[@]}")
-    else
-        # Validate component
+    # Validate component if a specific one was requested.
+    if [ -n "${WAZUH_COMPONENT}" ]; then
         case "${WAZUH_COMPONENT}" in
-            wazuh-indexer|wazuh-manager|wazuh-dashboard|wazuh-agent)
-                components_to_build=("${WAZUH_COMPONENT}")
-                ;;
+            wazuh-indexer|wazuh-manager|wazuh-dashboard|wazuh-agent) ;;
             *)
                 echo "Error: Unknown component '${WAZUH_COMPONENT}'" >&2
                 clean 1
@@ -219,77 +190,50 @@ build() {
         esac
     fi
 
-    # Determine build command and base options
+    # Generate per-component image tags.
+    # The commit suffix is only appended when --dev is passed. This ensures:
+    #   dev=false, tag=5.0.0       → 5.0.0
+    #   dev=false, tag=5.0.0-beta1 → 5.0.0-beta1
+    #   dev=true,  tag=5.0.0       → 5.0.0-latest
+    #   dev=true,  tag=5.0.0-beta1 → 5.0.0-beta1-latest
+    make_tag() {
+        local commit=$1
+        if [ -n "${IS_DEV_BUILD}" ]; then
+            echo "${WAZUH_IMAGE_VERSION}${WAZUH_DEV_STAGE:+-${WAZUH_DEV_STAGE,,}}-${commit}"
+        else
+            echo "${base_tag}"
+        fi
+    }
+
+    export WAZUH_VERSION="$WAZUH_IMAGE_VERSION"
+    export INDEXER_TAG=$(make_tag   "${INDEXER_COMMIT:-latest}")
+    export MANAGER_TAG=$(make_tag   "${MANAGER_COMMIT:-latest}")
+    export DASHBOARD_TAG=$(make_tag "${DASHBOARD_COMMIT:-latest}")
+    export AGENT_TAG=$(make_tag     "${AGENT_COMMIT:-latest}")
+
+    echo "Image tags:"
+    echo "  wazuh-indexer:   ${WAZUH_REGISTRY}/wazuh/wazuh-indexer:${INDEXER_TAG}"
+    echo "  wazuh-manager:   ${WAZUH_REGISTRY}/wazuh/wazuh-manager:${MANAGER_TAG}"
+    echo "  wazuh-dashboard: ${WAZUH_REGISTRY}/wazuh/wazuh-dashboard:${DASHBOARD_TAG}"
+    echo "  wazuh-agent:     ${WAZUH_REGISTRY}/wazuh/wazuh-agent:${AGENT_TAG}"
+
+    # Bake options: --push for multi-arch (can't load multi-platform locally),
+    # --load for single-arch (stores image in local Docker daemon).
+    local bake_opts="--no-cache"
     if [ "${MULTIARCH}" ]; then
-        build_cmd="docker buildx build --platform linux/amd64,linux/arm64 --push --no-cache"
+        bake_opts="${bake_opts} --push"
     else
-        build_cmd="docker build --no-cache"
+        bake_opts="${bake_opts} --load"
     fi
 
-    # Build each component
-    for component in "${components_to_build[@]}"; do
-        echo "Building ${component} image..."
-
-        # Get component-specific commit reference
-        COMPONENT_COMMIT=$(get_component_commit "${component}")
-
-        # Generate component-specific IMAGE_TAG.
-        # The commit suffix is only appended when --dev was passed, which maps
-        # directly to inputs.dev=true in the workflow. This ensures:
-        #   dev=false, tag=5.0.0       → 5.0.0
-        #   dev=false, tag=5.0.0-beta1 → 5.0.0-beta1
-        #   dev=true,  tag=5.0.0       → 5.0.0-latest
-        #   dev=true,  tag=5.0.0-beta1 → 5.0.0-beta1-latest
-        if [ -n "${IS_DEV_BUILD}" ]; then
-            IMAGE_TAG="${WAZUH_IMAGE_VERSION}${WAZUH_DEV_STAGE:+-${WAZUH_DEV_STAGE,,}}-${COMPONENT_COMMIT}"
-        else
-            IMAGE_TAG="${WAZUH_IMAGE_VERSION}${WAZUH_DEV_STAGE:+-${WAZUH_DEV_STAGE,,}}"
-        fi
-        echo "Using IMAGE_TAG: ${IMAGE_TAG} for ${component}"
-        export IMAGE_TAG="$IMAGE_TAG"
-
-        # Build common args (used by all components)
-        build_args=(
-            -t "${WAZUH_REGISTRY}/wazuh/${component}:${IMAGE_TAG}"
-            --build-arg WAZUH_VERSION="${WAZUH_IMAGE_VERSION}"
-        )
-
-        # Add component-specific args
-        case "${component}" in
-            wazuh-indexer)
-                build_args+=(
-                    --build-arg wazuh_indexer_x86_64_rpm="${wazuh_indexer_x86_64_rpm}"
-                    --build-arg wazuh_indexer_aarch64_rpm="${wazuh_indexer_aarch64_rpm}"
-                    --build-arg wazuh_certs_tool="${wazuh_certs_tool}"
-                    --build-arg wazuh_config_yml="${wazuh_config_yml}"
-                )
-                ;;
-            wazuh-manager)
-                build_args+=(
-                    --build-arg wazuh_manager_x86_64_rpm="${wazuh_manager_x86_64_rpm}"
-                    --build-arg wazuh_manager_aarch64_rpm="${wazuh_manager_aarch64_rpm}"
-                )
-                ;;
-            wazuh-dashboard)
-                build_args+=(
-                    --build-arg wazuh_dashboard_x86_64_rpm="${wazuh_dashboard_x86_64_rpm}"
-                    --build-arg wazuh_dashboard_aarch64_rpm="${wazuh_dashboard_aarch64_rpm}"
-                    --build-arg wazuh_certs_tool="${wazuh_certs_tool}"
-                    --build-arg wazuh_config_yml="${wazuh_config_yml}"
-                )
-                ;;
-            wazuh-agent)
-                build_args+=(
-                    --build-arg wazuh_agent_x86_64_rpm="${wazuh_agent_x86_64_rpm}"
-                    --build-arg wazuh_agent_aarch64_rpm="${wazuh_agent_aarch64_rpm}"
-                )
-                ;;
-        esac
-
-        # Execute build
-        $build_cmd "${build_args[@]}" ${component}/ || clean 1
-        echo "${component} image built successfully!"
-    done
+    # Build a specific component or the full default group (all 4 in parallel).
+    if [ -z "${WAZUH_COMPONENT}" ]; then
+        echo "Building all components in parallel..."
+        docker buildx bake ${bake_opts} -f docker-bake.hcl || clean 1
+    else
+        echo "Building ${WAZUH_COMPONENT}..."
+        docker buildx bake ${bake_opts} -f docker-bake.hcl "${WAZUH_COMPONENT}" || clean 1
+    fi
 
     echo ""
     echo "Image build process completed!"

build-docker-images/build-images.yml

@@ -1,4 +1,12 @@
 # Wazuh App Copyright (C) 2017, Wazuh Inc. (License GPLv2)
+#
+# Build-only compose file for `docker compose build`.
+# Only `build` and `image` keys are relevant here; all runtime configuration
+# (ports, volumes, environment, depends_on, etc.) belongs in the deployment
+# compose files under single-node/ or multi-node/.
+#
+# For parallel builds and full multi-arch support, prefer docker-bake.hcl:
+#   docker buildx bake -f docker-bake.hcl
 services:
   wazuh.manager:
     build:
@@ -10,23 +18,6 @@ services:
         wazuh_certs_tool: ${wazuh_certs_tool}
         wazuh_config_yml: ${wazuh_config_yml}
     image: ${WAZUH_REGISTRY}/wazuh/wazuh-manager:${IMAGE_TAG}
-    hostname: wazuh.manager
-    restart: always
-    ports:
-      - "1514:1514"
-      - "1515:1515"
-      - "514:514/udp"
-      - "55000:55000"
-    environment:
-      - INDEXER_URL=https://wazuh.indexer:9200
-      - INDEXER_USERNAME=admin
-      - INDEXER_PASSWORD=admin
-    volumes:
-      - wazuh_api_configuration:/var/wazuh-manager/api/configuration
-      - wazuh_etc:/var/wazuh-manager/etc
-      - wazuh_logs:/var/wazuh-manager/logs
-      - wazuh_queue:/var/wazuh-manager/queue
-      - wazuh_var_multigroups:/var/wazuh-manager/var/multigroups
 
   wazuh.agent:
     build:
@@ -36,8 +27,6 @@ services:
         wazuh_agent_x86_64_rpm: ${wazuh_agent_x86_64_rpm}
         wazuh_agent_aarch64_rpm: ${wazuh_agent_aarch64_rpm}
     image: ${WAZUH_REGISTRY}/wazuh/wazuh-agent:${IMAGE_TAG}
-    hostname: wazuh.agent
-    restart: always
 
   wazuh.indexer:
     build:
@@ -49,19 +38,6 @@ services:
         wazuh_certs_tool: ${wazuh_certs_tool}
         wazuh_config_yml: ${wazuh_config_yml}
     image: ${WAZUH_REGISTRY}/wazuh/wazuh-indexer:${IMAGE_TAG}
-    hostname: wazuh.indexer
-    restart: always
-    ports:
-      - "9200:9200"
-    environment:
-      - "OPENSEARCH_JAVA_OPTS=-Xms512m -Xmx512m"
-    ulimits:
-      memlock:
-        soft: -1
-        hard: -1
-      nofile:
-        soft: 65536
-        hard: 65536
 
   wazuh.dashboard:
     build:
@@ -73,26 +49,4 @@ services:
         wazuh_certs_tool: ${wazuh_certs_tool}
         wazuh_config_yml: ${wazuh_config_yml}
     image: ${WAZUH_REGISTRY}/wazuh/wazuh-dashboard:${IMAGE_TAG}
-    hostname: wazuh.dashboard
-    restart: always
-    ports:
-      - 443:443
-    environment:
-      - INDEXER_USERNAME=admin
-      - INDEXER_PASSWORD=admin
-      - SERVER_SSL_ENABLED=false
-      - WAZUH_API_URL=https://wazuh.manager
-    depends_on:
-      - wazuh.indexer
-    links:
-      - wazuh.indexer:wazuh.indexer
-      - wazuh.manager:wazuh.manager
-
-volumes:
-  wazuh_api_configuration:
-  wazuh_etc:
-  wazuh_logs:
-  wazuh_queue:
-  wazuh_var_multigroups:
-  wazuh_active_response:
 

build-docker-images/docker-bake.hcl

@@ -0,0 +1,108 @@
+# Wazuh Docker Copyright (C) 2017, Wazuh Inc. (License GPLv2)
+#
+# Docker Buildx Bake file.
+# Builds all Wazuh component images in parallel.
+#
+# Usage:
+#   docker buildx bake                          # build all (local, single-arch)
+#   docker buildx bake wazuh-manager            # build one component
+#   docker buildx bake --push                   # push to registry after build
+#
+# Variables are read automatically from the environment (see build-images.sh).
+
+# ── Global variables ──────────────────────────────────────────────────────────
+
+variable "WAZUH_VERSION"  { default = "5.0.0" }
+variable "WAZUH_REGISTRY" { default = "docker.io" }
+
+# Set IMAGE_TAG externally to override; defaults to WAZUH_VERSION.
+variable "IMAGE_TAG" { default = WAZUH_VERSION }
+
+# MULTIARCH: set to a non-empty value to build linux/amd64 + linux/arm64.
+variable "MULTIARCH" { default = "" }
+
+# Per-component tags — all default to IMAGE_TAG.
+# In dev builds the shell script sets each one independently to append the
+# per-component commit ref (e.g. MANAGER_TAG=5.0.0-beta1-abc1234).
+variable "INDEXER_TAG"   { default = IMAGE_TAG }
+variable "MANAGER_TAG"   { default = IMAGE_TAG }
+variable "DASHBOARD_TAG" { default = IMAGE_TAG }
+variable "AGENT_TAG"     { default = IMAGE_TAG }
+
+# ── Artifact URL variables ────────────────────────────────────────────────────
+# Populated by build-images.sh from artifacts_env.txt (sourced into env).
+
+variable "wazuh_indexer_x86_64_rpm"    { default = "" }
+variable "wazuh_indexer_aarch64_rpm"   { default = "" }
+variable "wazuh_manager_x86_64_rpm"    { default = "" }
+variable "wazuh_manager_aarch64_rpm"   { default = "" }
+variable "wazuh_dashboard_x86_64_rpm"  { default = "" }
+variable "wazuh_dashboard_aarch64_rpm" { default = "" }
+variable "wazuh_agent_x86_64_rpm"      { default = "" }
+variable "wazuh_agent_aarch64_rpm"     { default = "" }
+variable "wazuh_certs_tool"            { default = "" }
+variable "wazuh_config_yml"            { default = "" }
+
+# ── Default group: builds all components ─────────────────────────────────────
+
+group "default" {
+  targets = ["wazuh-indexer", "wazuh-manager", "wazuh-dashboard", "wazuh-agent"]
+}
+
+# ── Shared base target ────────────────────────────────────────────────────────
+# All component targets inherit from here. Not built directly.
+
+target "_common" {
+  platforms = MULTIARCH != "" ? ["linux/amd64", "linux/arm64"] : ["linux/amd64"]
+  args = {
+    WAZUH_VERSION = WAZUH_VERSION
+  }
+}
+
+# ── Component targets ─────────────────────────────────────────────────────────
+
+target "wazuh-indexer" {
+  inherits = ["_common"]
+  context  = "wazuh-indexer/"
+  tags     = ["${WAZUH_REGISTRY}/wazuh/wazuh-indexer:${INDEXER_TAG}"]
+  args = {
+    wazuh_indexer_x86_64_rpm  = wazuh_indexer_x86_64_rpm
+    wazuh_indexer_aarch64_rpm = wazuh_indexer_aarch64_rpm
+    wazuh_certs_tool          = wazuh_certs_tool
+    wazuh_config_yml          = wazuh_config_yml
+  }
+}
+
+target "wazuh-manager" {
+  inherits = ["_common"]
+  context  = "wazuh-manager/"
+  tags     = ["${WAZUH_REGISTRY}/wazuh/wazuh-manager:${MANAGER_TAG}"]
+  args = {
+    wazuh_manager_x86_64_rpm  = wazuh_manager_x86_64_rpm
+    wazuh_manager_aarch64_rpm = wazuh_manager_aarch64_rpm
+    wazuh_certs_tool          = wazuh_certs_tool
+    wazuh_config_yml          = wazuh_config_yml
+  }
+}
+
+target "wazuh-dashboard" {
+  inherits = ["_common"]
+  context  = "wazuh-dashboard/"
+  tags     = ["${WAZUH_REGISTRY}/wazuh/wazuh-dashboard:${DASHBOARD_TAG}"]
+  args = {
+    wazuh_dashboard_x86_64_rpm  = wazuh_dashboard_x86_64_rpm
+    wazuh_dashboard_aarch64_rpm = wazuh_dashboard_aarch64_rpm
+    wazuh_certs_tool            = wazuh_certs_tool
+    wazuh_config_yml            = wazuh_config_yml
+  }
+}
+
+target "wazuh-agent" {
+  inherits = ["_common"]
+  context  = "wazuh-agent/"
+  tags     = ["${WAZUH_REGISTRY}/wazuh/wazuh-agent:${AGENT_TAG}"]
+  args = {
+    wazuh_agent_x86_64_rpm  = wazuh_agent_x86_64_rpm
+    wazuh_agent_aarch64_rpm = wazuh_agent_aarch64_rpm
+  }
+}

build-docker-images/wazuh-agent/Dockerfile

@@ -1,10 +1,13 @@
 # Wazuh Docker Copyright (C) 2017, Wazuh Inc. (License GPLv2)
-FROM amazonlinux:2023
 
-RUN rm /bin/sh && ln -s /bin/bash /bin/sh
+################################################################################
+# Build stage 0 (builder):
+# Install Wazuh Agent RPM and download tini (static PID-1 init shim).
+################################################################################
+FROM amazonlinux:2023 AS builder
 
 ARG WAZUH_VERSION
-ARG S6_VERSION="v2.2.0.3"
+ARG TINI_VERSION="v0.19.0"
 ARG WAZUH_MANAGER='CHANGE_MANAGER_IP'
 ARG WAZUH_REGISTRATION_SERVER='CHANGE_ENROLL_IP'
 ARG WAZUH_AGENT_NAME='CHANGE_AGENT_NAME'
@@ -16,19 +19,51 @@ RUN RPM_ARCH="x86_64" && \
     if [ "${TARGETARCH}" = "arm64" ]; then RPM_ARCH="aarch64"; fi && \
     URL_VAR="wazuh_agent_${RPM_ARCH}_rpm" && \
     agent_url="${!URL_VAR}" && \
-    dnf install curl-minimal tar gzip procps -y &&\
+    dnf install curl-minimal tar gzip procps shadow-utils -y && \
     curl -o /wazuh-agent.rpm "${agent_url}" && \
     dnf install /wazuh-agent.rpm -y && \
     rm -rf /wazuh-agent.rpm && \
     dnf clean all && \
-    sed -i '/<authorization_pass_path>/d' /var/ossec/etc/ossec.conf && \
-    S6_ARCH="amd64" && \
-    if [ "${TARGETARCH}" = "arm64" ]; then S6_ARCH="aarch64"; fi && \
-    curl --fail --silent -L https://github.com/just-containers/s6-overlay/releases/download/${S6_VERSION}/s6-overlay-${S6_ARCH}.tar.gz \
-    -o /tmp/s6-overlay-${S6_ARCH}.tar.gz && \
-    tar xzf /tmp/s6-overlay-${S6_ARCH}.tar.gz -C / --exclude="./bin" && \
-    tar xzf /tmp/s6-overlay-${S6_ARCH}.tar.gz -C /usr ./bin && \
-    rm  /tmp/s6-overlay-${S6_ARCH}.tar.gz
+    sed -i '/<authorization_pass_path>/d' /var/ossec/etc/ossec.conf
+
+# Download tini static binary (no external library dependencies)
+RUN TINI_ARCH="amd64" && \
+    if [ "${TARGETARCH}" = "arm64" ]; then TINI_ARCH="arm64"; fi && \
+    curl --fail --silent -L \
+    https://github.com/krallin/tini/releases/download/${TINI_VERSION}/tini-static-${TINI_ARCH} \
+    -o /usr/local/bin/tini && \
+    chmod +x /usr/local/bin/tini
+
+################################################################################
+# Build stage 1 (the actual Wazuh Agent image):
+# Copy Wazuh Agent and tini from builder. Install only runtime dependencies.
+################################################################################
+FROM amazonlinux:2023
+
+RUN rm /bin/sh && ln -s /bin/bash /bin/sh
+
+# Install only runtime dependencies
+RUN dnf install procps shadow-utils -y && \
+    dnf clean all && \
+    getent group wazuh || groupadd -r -g 999 wazuh && \
+    getent passwd wazuh || useradd --system \
+        --uid 999 \
+        --no-create-home \
+        --home-dir /var/ossec \
+        --gid wazuh \
+        --shell /sbin/nologin \
+        wazuh
+
+# Copy Wazuh Agent installation from builder
+COPY --from=builder /var/ossec /var/ossec
+
+# Copy tini static binary
+COPY --from=builder /usr/local/bin/tini /usr/local/bin/tini
+
+# Copy entrypoint and init scripts
+COPY config/entrypoint.sh /entrypoint.sh
 COPY config/etc/ /etc/
 
-ENTRYPOINT [ "/init" ]
+RUN chmod 755 /entrypoint.sh
+
+ENTRYPOINT ["/usr/local/bin/tini", "--", "/entrypoint.sh"]

build-docker-images/wazuh-agent/config/entrypoint.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+# Wazuh Docker Copyright (C) 2017, Wazuh Inc. (License GPLv2)
+
+# Run initialization and configuration
+bash /etc/cont-init.d/0-wazuh-init
+
+# Start Wazuh Agent (may log warnings if manager address is not configured)
+bash /etc/cont-init.d/1-agent
+
+# Tail the main log to stdout so Docker captures it
+tail -F /var/ossec/logs/ossec.log &
+TAIL_PID=$!
+
+# Graceful shutdown: stop Wazuh and exit cleanly on SIGTERM/SIGINT
+_stop() {
+    echo "Stopping Wazuh Agent..."
+    /var/ossec/bin/wazuh-control stop 2>/dev/null || true
+    kill "${TAIL_PID}" 2>/dev/null || true
+}
+trap _stop SIGTERM SIGINT SIGQUIT
+
+wait "${TAIL_PID}"

build-docker-images/wazuh-agent/config/etc/cont-init.d/0-wazuh-init

@@ -1,4 +1,4 @@
-#!/usr/bin/with-contenv bash
+#!/bin/bash
 # Wazuh App Copyright (C) 2017, Wazuh Inc. (License GPLv2)
 
 WAZUH_INSTALL_PATH=/var/ossec

build-docker-images/wazuh-agent/config/etc/cont-init.d/1-agent

@@ -1,4 +1,4 @@
-#!/usr/bin/with-contenv bash
+#!/bin/bash
 
 ##############################################################################
 # Migration sequence

build-docker-images/wazuh-agent/config/etc/services.d/ossec-logs/run

@@ -1,4 +1,4 @@
-#!/usr/bin/with-contenv sh
+#!/bin/sh
 
 # dumping ossec.log to standard output
 exec tail -F /var/ossec/logs/ossec.log

build-docker-images/wazuh-manager/Dockerfile

@@ -1,53 +1,88 @@
 # Wazuh Docker Copyright (C) 2017, Wazuh Inc. (License GPLv2)
-FROM amazonlinux:2023
 
-RUN rm /bin/sh && ln -s /bin/bash /bin/sh
+################################################################################
+# Build stage 0 (builder):
+# Install Wazuh Manager RPM, configure directories, prepare permanent data,
+# and download tini (static PID-1 init shim).
+################################################################################
+FROM amazonlinux:2023 AS builder
 
 ARG WAZUH_VERSION
-ARG S6_VERSION="v2.2.0.3"
+ARG TINI_VERSION="v0.19.0"
 ARG TARGETARCH
 ARG wazuh_manager_x86_64_rpm
 ARG wazuh_manager_aarch64_rpm
 
+# Prepare permanent data config needed by permanent_data.sh at build time
+COPY config/permanent_data.env config/permanent_data.sh /
+
 RUN RPM_ARCH="x86_64" && \
     if [ "${TARGETARCH}" = "arm64" ]; then RPM_ARCH="aarch64"; fi && \
     URL_VAR="wazuh_manager_${RPM_ARCH}_rpm" && \
     manager_url="${!URL_VAR}" && \
-    dnf install curl-minimal xz gnupg tar gzip openssl findutils procps -y &&\
+    dnf install curl-minimal xz gnupg tar gzip openssl findutils procps shadow-utils -y && \
     dnf clean all && \
     curl -o /wazuh-manager.rpm "${manager_url}" && \
     dnf install /wazuh-manager.rpm -y && \
     rm -rf /wazuh-manager.rpm && \
     dnf clean all && \
-    S6_ARCH="amd64" && \
-    if [ "${TARGETARCH}" = "arm64" ]; then S6_ARCH="aarch64"; fi && \
-    curl --fail --silent -L https://github.com/just-containers/s6-overlay/releases/download/${S6_VERSION}/s6-overlay-${S6_ARCH}.tar.gz \
-    -o /tmp/s6-overlay-${S6_ARCH}.tar.gz && \
-    tar xzf /tmp/s6-overlay-${S6_ARCH}.tar.gz -C / --exclude="./bin" && \
-    tar xzf /tmp/s6-overlay-${S6_ARCH}.tar.gz -C /usr ./bin && \
-    rm  /tmp/s6-overlay-${S6_ARCH}.tar.gz && \
-    rm -f /var/wazuh-manager/etc/sslmanager.key && \
-    rm -f /var/wazuh-manager/etc/sslmanager.cert
-
-COPY config/etc/ /etc/
-# Prepare permanent data
-# Sync calls are due to https://github.com/docker/docker/issues/9547
-
-COPY config/permanent_data.env config/permanent_data.sh /
-
-#Make mount directories for keep permissions
-
-RUN mkdir -p /var/wazuh-manager/var/multigroups && \
+    # Set up required directories with correct ownership
+    mkdir -p /var/wazuh-manager/var/multigroups && \
     chown root:wazuh-manager /var/wazuh-manager/var/multigroups && \
     chmod 770 /var/wazuh-manager/var/multigroups && \
     mkdir -p /var/wazuh-manager/etc/certs && \
     chown wazuh-manager:wazuh-manager /var/wazuh-manager/etc/certs && \
     chmod 500 /var/wazuh-manager/etc/certs && \
-    chmod 755 /permanent_data.sh && \
+    rm -f /var/wazuh-manager/etc/sslmanager.key && \
+    rm -f /var/wazuh-manager/etc/sslmanager.cert
+
+# Prepare permanent data snapshot (sync calls: https://github.com/docker/docker/issues/9547)
+RUN chmod 755 /permanent_data.sh && \
     sync && /permanent_data.sh && \
     sync && rm /permanent_data.sh
 
+# Download tini static binary (no external library dependencies)
+RUN TINI_ARCH="amd64" && \
+    if [ "${TARGETARCH}" = "arm64" ]; then TINI_ARCH="arm64"; fi && \
+    curl --fail --silent -L \
+    https://github.com/krallin/tini/releases/download/${TINI_VERSION}/tini-static-${TINI_ARCH} \
+    -o /usr/local/bin/tini && \
+    chmod +x /usr/local/bin/tini
+
+################################################################################
+# Build stage 1 (the actual Wazuh Manager image):
+# Copy Wazuh Manager and tini from builder. Install only runtime dependencies.
+################################################################################
+FROM amazonlinux:2023
+
+RUN rm /bin/sh && ln -s /bin/bash /bin/sh
+
+# Install only runtime dependencies (no curl, tar, gzip, xz, or full dnf stack)
+RUN dnf install openssl findutils procps shadow-utils -y && \
+    dnf clean all && \
+    getent group wazuh-manager || groupadd -r -g 999 wazuh-manager && \
+    getent passwd wazuh-manager || useradd --system \
+        --uid 999 \
+        --no-create-home \
+        --home-dir /var/wazuh-manager \
+        --gid wazuh-manager \
+        --shell /sbin/nologin \
+        wazuh-manager
+
+# Copy Wazuh Manager installation (includes permanent data snapshot)
+COPY --from=builder /var/wazuh-manager /var/wazuh-manager
+
+# Copy tini static binary
+COPY --from=builder /usr/local/bin/tini /usr/local/bin/tini
+
+# Copy entrypoint, init scripts and runtime config
+COPY config/entrypoint.sh /entrypoint.sh
+COPY config/etc/ /etc/
+COPY config/permanent_data.env /
+
+RUN chmod 755 /entrypoint.sh
+
 # Services ports
 EXPOSE 55000/tcp 1514/tcp 1515/tcp 514/udp 1516/tcp
 
-ENTRYPOINT [ "/init" ]
+ENTRYPOINT ["/usr/local/bin/tini", "--", "/entrypoint.sh"]

build-docker-images/wazuh-manager/config/entrypoint.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+# Wazuh Docker Copyright (C) 2017, Wazuh Inc. (License GPLv2)
+
+# Run initialization and configuration
+bash /etc/cont-init.d/0-wazuh-init
+
+# Start Wazuh Manager (may log warnings in environments without certs)
+bash /etc/cont-init.d/1-manager
+
+# Tail the main log to stdout so Docker captures it
+tail -F /var/wazuh-manager/logs/wazuh-manager.log &
+TAIL_PID=$!
+
+# Graceful shutdown: stop Wazuh and exit cleanly on SIGTERM/SIGINT
+_stop() {
+    echo "Stopping Wazuh Manager..."
+    /var/wazuh-manager/bin/wazuh-manager-control stop 2>/dev/null || true
+    kill "${TAIL_PID}" 2>/dev/null || true
+}
+trap _stop SIGTERM SIGINT SIGQUIT
+
+wait "${TAIL_PID}"

build-docker-images/wazuh-manager/config/etc/cont-init.d/0-wazuh-init

@@ -1,4 +1,4 @@
-#!/usr/bin/with-contenv bash
+#!/bin/bash
 # Wazuh App Copyright (C) 2017, Wazuh Inc. (License GPLv2)
 
 # Variables

build-docker-images/wazuh-manager/config/etc/cont-init.d/1-manager

@@ -1,4 +1,4 @@
-#!/usr/bin/with-contenv bash
+#!/bin/bash
 
 ##############################################################################
 # Migration sequence

build-docker-images/wazuh-manager/config/etc/services.d/wazuh-manager-logs/run

@@ -1,4 +1,4 @@
-#!/usr/bin/with-contenv sh
+#!/bin/sh
 
 # dumping wazuh-manager.log to standard output
 exec tail -F /var/wazuh-manager/logs/wazuh-manager.log