Реализация на отдельных двух машинах с протестированным взаимодействием по проверке сообщений

VM1_app/codebase/backend/deployment/han-stack@.service

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+[Unit]
+Description=HAN Chat VM1 root Compose stack (%i)
+Requires=docker.service han-secrets@%i.service
+After=docker.service han-secrets@%i.service network-online.target
+Wants=network-online.target
+ConditionPathIsDirectory=/opt/han-chat/current/backend
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+User=root
+Group=root
+WorkingDirectory=/opt/han-chat/current/backend
+ExecStart=/usr/local/sbin/han-vm1-compose up -d --remove-orphans
+ExecReload=/usr/local/sbin/han-vm1-compose up -d --remove-orphans
+ExecStop=/usr/local/sbin/han-vm1-compose stop
+TimeoutStartSec=600
+TimeoutStopSec=180
+UMask=0077
+NoNewPrivileges=yes
+PrivateTmp=yes
+ProtectHome=yes
+ProtectKernelTunables=yes
+ProtectKernelModules=yes
+ProtectKernelLogs=yes
+ProtectControlGroups=yes
+RestrictRealtime=yes
+RestrictSUIDSGID=yes
+LockPersonality=yes
+LimitCORE=0
+
+[Install]
+WantedBy=multi-user.target