JDK Runtime Installation and Path Configuration

Verify the current system state to avoid duplicate installations. Check for pre-existing JVM binaries:

java -version
javac -version

If no suitable OpenJDK or Oracle JDK is present, transfer the distribution archive to the server workspace. Extract the archive into a dedicated runtime location rather than scattering files across the system root.

TARGET_RUNTIME="/usr/lib/jvm/custom-jre"
ARCHIVE_PATH="/var/tmp/jdk-distribution.tar.gz"

sudo mkdir -p "$TARGET_RUNTIME"
sudo tar -xzf "$ARCHIVE_PATH" -C "$TARGET_RUNTIME" --strip-components=1

Define environment bindings at the system level to ensure all sessions inherit the runtime paths. Append the following definitions to /etc/profile.d/custom-java.sh:

export JRE_BASE="$TARGET_RUNTIME"
export JRE_BIN="${JRE_BASE}/bin"
export JRE_LIB="${JRE_BASE}/lib"
export CLASSPATH=".:${JRE_LIB}"
export SYSTEM_PATH="${JRE_BIN}:/usr/sbin:/usr/bin:$PATH"
export PATH="$SYSTEM_PATH"
unset JRE_BASE JRE_BIN JRE_LIB CLASSPATH SYSTEM_PATH

Apply the changes immediately without requiring a session reboot:

source /etc/profile
java -version

Apache Tomcat Server Initialization and Bootstrapping

Extract the servlet container archive to a controlled application directory. Adjust version identifiers as needed for your specific build.

WEBAPP_ROOT="/srv/tomcat-installs/v8_5"
TARBALL_SRC="/var/tmp/apache-tomcat-release.tar.gz"

sudo tar -xzf "$TARBALL_SRC" -C "/srv/" --strip-components=1
mv "/srv/apache-tomcat-*" "$WEBAPP_ROOT"

Launch the daemon using the built-in controller located in the binary partition:

cd "$WEBAPP_ROOT/bin"
./start-catalina.sh

Expose the default HTTP interface through the host firewall. Ensure traffic is permitted on the standard connector port before routing external requests.

firewall-cmd --permanent --add-port=8080/tcp
firewall-cmd --reload
firewall-cmd --list-ports

To guarantee automatic service resurrection after kernel panics or scheduled reboots, configure a legacy init wrapper. Relocate the native launcher and inject system directives:

cp "$WEBAPP_ROOT/bin/catalina.sh" /etc/init.d/web-container
chmod +x /etc/init.d/web-container

cat <<EOF >> /etc/init.d/web-container
JAVA_INSTALLATION="$TARGET_RUNTIME"
TOMCAT_INSTANCE="$WEBAPP_ROOT"
EOF

# Register service metadata
sed -i '1 i #\chkconfig: 2345 70 30\n#\description: Servlet Container Service' /etc/init.d/web-container
chkconfig --add web-container

Validate persistence by executing a cold reboot sequence. The init hierarchy will invoke the registered hook upon reaching multi-user targets.

MariaDB Purge and Oracle MySQL Deployment

Cleanse legacy database remnants that conflict with modern distributions. Identify and strip conflicting libraries:

rpm -qa | grep mariadb-libs
rpm -e --nodeps $(rpm -qa | grep mariadb-libs)

Prepare an isolated storage zone for the relational engine packages. Decompress the bundled repository and execute dependency resolution sequentially:

MYSQL_DEPLOY="/srv/database/mysql-57-bundle"
BUNDLE_SRC="/var/tmp/mysql-official-rpms.tar"

sudo mkdir -p "$MYSQL_DEPLOY"
tar -xf "$BUNDLE_SRC" -C "$MYSQL_DEPLOY"

cd "$MYSQL_DEPLOY"
rpmlist=("mysql-community-common" "mysql-community-libs" "mysql-community-client" "mysql-community-server")
for pkg in "${rpmlist[@]}"; do
  sudo rpm -ivh ${pkg}-5.7.35-1.el7.x86_64.rpm
done

Transition to runtime management via the unified service controller:

systemctl daemon-reload
systemctl start mysqld.service
systemctl enable mysqld.service

Retrieve the ephemeral authentication credential generated during initialization. Strip restrictive password complexity policies and establish permanent credentials:

TEMP_AUTH=$(grep 'temporary password' /var/log/mysqld.log | tail -n1 | awk '{print $NF}')
mysql -u root -p"$TEMP_AUTH" <<SQL_END
SET GLOBAL validate_password.policy = LOW;
SET GLOBAL validate_password.length = 4;
ALTER USER 'root'@'localhost' IDENTIFIED BY 'SecurePass1';
FLUSH PRIVILEGES;
EXIT;
SQL_END

Permit network connections from external clients by modifying socket bindings and adjusting host restrictions. Open the relational protocol port within the perimeter defense layer:

mysql -u root -p'SecurePass1' <<SQL_SEC
CREATE DATABASE app_workflow_db;
GRANT ALL ON app_workflow_db.* TO 'deployer'@'%' IDENTIFIED BY 'AppFlow456';
FLUSH PRIVILEGES;
EXIT;
SQL_SEC

firewall-cmd --permanent --add-service=mysql
firewall-cmd --reload

Enterprise Application Packaging and Runtime Binding

Provision the target schema inside the database cluster. Import legacy DDL/DML dumps to initialize table structures and seed reference data.

Halt the servlet processor to release locked archive locks and prevent corruption during file swaps:

cd "$WEBAPP_ROOT/bin"
./shutdown-catalina.sh

Navigate to the document root partition designated for hot-swappable archives. Resolve the absolute path context:

cd "$WEBAPP_ROOT/webapps"
realpath .

Transfer the compiled .war artifact into this directory via secure file transfer protocols.

Reactivate the processing engine to trigger automatic unpacking and classloading:

./startup-catalina.sh

Route client traffic through the designated virtual host endpoint. Append the context path identifier followed by administrative credentials to complete the handshake:

http://<host_ip>:8080/<context-path>/login

Monitor background execution streams via journalctl or log partitions to verify successful module injection and health checks.