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fix: change gateway backend URLs from service name to host.docker.internal

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Update gateway configuration to use host.docker.internal instead of backend service name for API communication. Add extra_hosts mapping in docker-compose to enable host.docker.internal resolution. Add NEXAVPN_BACKEND_HOST environment variable to .env.example with host.docker.internal default.
This commit is contained in:
Sascha Nesterovic
2026-03-17 19:43:56 +01:00
parent c921e86a11
commit 4a2985ae5e
2 changed files with 8 additions and 5 deletions
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5
deploy/.env.example
View File

@@ -15,10 +15,11 @@ DEFAULT_GATEWAY_PUBLIC_KEY=replace-me
GATEWAY_BOOTSTRAP_TOKEN=nexavpn-gateway-bootstrap GATEWAY_BOOTSTRAP_TOKEN=nexavpn-gateway-bootstrap
NEXAVPN_GATEWAY_ID= NEXAVPN_GATEWAY_ID=
NEXAVPN_GATEWAY_NAME=primary-gateway NEXAVPN_GATEWAY_NAME=primary-gateway
NEXAVPN_GATEWAY_SYNC_URL=http://backend:8080/api/v1/gateway-agent NEXAVPN_GATEWAY_SYNC_URL=http://host.docker.internal:8080/api/v1/gateway-agent
NEXAVPN_GATEWAY_BOOTSTRAP_URL=http://backend:8080/api/v1/gateway-agent/bootstrap NEXAVPN_GATEWAY_BOOTSTRAP_URL=http://host.docker.internal:8080/api/v1/gateway-agent/bootstrap
NEXAVPN_API_TOKEN= NEXAVPN_API_TOKEN=
NEXAVPN_GATEWAY_PRIVATE_KEY= NEXAVPN_GATEWAY_PRIVATE_KEY=
NEXAVPN_GATEWAY_INTERFACE=wg0 NEXAVPN_GATEWAY_INTERFACE=wg0
NEXAVPN_UPLINK_INTERFACE=eth0 NEXAVPN_UPLINK_INTERFACE=eth0
NEXAVPN_ENABLE_MASQUERADE=true NEXAVPN_ENABLE_MASQUERADE=true
NEXAVPN_BACKEND_HOST=host.docker.internal

8
deploy/docker-compose.yml
View File

@@ -69,12 +69,14 @@ services:
- SYS_MODULE - SYS_MODULE
devices: devices:
- /dev/net/tun:/dev/net/tun - /dev/net/tun:/dev/net/tun
extra_hosts:
- "host.docker.internal:host-gateway"
environment: environment:
GATEWAY_BOOTSTRAP_TOKEN: ${GATEWAY_BOOTSTRAP_TOKEN:-nexavpn-gateway-bootstrap} GATEWAY_BOOTSTRAP_TOKEN: ${GATEWAY_BOOTSTRAP_TOKEN:-nexavpn-gateway-bootstrap}
NEXAVPN_GATEWAY_ID: ${NEXAVPN_GATEWAY_ID:-} NEXAVPN_GATEWAY_ID: ${NEXAVPN_GATEWAY_ID:-}
NEXAVPN_GATEWAY_NAME: ${NEXAVPN_GATEWAY_NAME:-primary-gateway} NEXAVPN_GATEWAY_NAME: ${NEXAVPN_GATEWAY_NAME:-primary-gateway}
NEXAVPN_GATEWAY_SYNC_URL: ${NEXAVPN_GATEWAY_SYNC_URL:-http://backend:8080/api/v1/gateway-agent} NEXAVPN_GATEWAY_SYNC_URL: ${NEXAVPN_GATEWAY_SYNC_URL:-http://host.docker.internal:8080/api/v1/gateway-agent}
NEXAVPN_GATEWAY_BOOTSTRAP_URL: ${NEXAVPN_GATEWAY_BOOTSTRAP_URL:-http://backend:8080/api/v1/gateway-agent/bootstrap} NEXAVPN_GATEWAY_BOOTSTRAP_URL: ${NEXAVPN_GATEWAY_BOOTSTRAP_URL:-http://host.docker.internal:8080/api/v1/gateway-agent/bootstrap}
DEFAULT_GATEWAY_ENDPOINT: ${DEFAULT_GATEWAY_ENDPOINT:-localhost:51820} DEFAULT_GATEWAY_ENDPOINT: ${DEFAULT_GATEWAY_ENDPOINT:-localhost:51820}
DEFAULT_VPN_CIDR: ${DEFAULT_VPN_CIDR:-100.96.0.0/24} DEFAULT_VPN_CIDR: ${DEFAULT_VPN_CIDR:-100.96.0.0/24}
NEXAVPN_API_TOKEN: ${NEXAVPN_API_TOKEN:-} NEXAVPN_API_TOKEN: ${NEXAVPN_API_TOKEN:-}
@@ -82,7 +84,7 @@ services:
NEXAVPN_GATEWAY_INTERFACE: ${NEXAVPN_GATEWAY_INTERFACE:-wg0} NEXAVPN_GATEWAY_INTERFACE: ${NEXAVPN_GATEWAY_INTERFACE:-wg0}
NEXAVPN_UPLINK_INTERFACE: ${NEXAVPN_UPLINK_INTERFACE:-eth0} NEXAVPN_UPLINK_INTERFACE: ${NEXAVPN_UPLINK_INTERFACE:-eth0}
NEXAVPN_ENABLE_MASQUERADE: ${NEXAVPN_ENABLE_MASQUERADE:-true} NEXAVPN_ENABLE_MASQUERADE: ${NEXAVPN_ENABLE_MASQUERADE:-true}
NEXAVPN_BACKEND_HOST: ${NEXAVPN_BACKEND_HOST:-backend} NEXAVPN_BACKEND_HOST: ${NEXAVPN_BACKEND_HOST:-host.docker.internal}
volumes: volumes:
- ./scripts/gateway-entrypoint.sh:/scripts/gateway-entrypoint.sh:ro - ./scripts/gateway-entrypoint.sh:/scripts/gateway-entrypoint.sh:ro
- gateway-state:/var/lib/nexavpn - gateway-state:/var/lib/nexavpn