Add DNS resolver configuration to Beszel Agent stack #255

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opened 2026-04-15 16:40:21 +03:00 by skobkin · 1 comment

skobkin commented

2026-04-15 16:40:21 +03:00

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DNS race on start occurred:

beszel-agent  | 2026/04/15 15:46:32 WARN WebSocket connection failed err="dial tcp: lookup xxx on [::1]:53: read udp [::1]:44557->[::1]:53: read: connection refused"

Solutions:

services:
  beszel-agent:
    image: henrygd/beszel-agent
    container_name: beszel-agent
    network_mode: host
    restart: unless-stopped
+    dns:
+      - 192.168.1.1      # router / Pi-hole / AdGuard / dnsmasq / whatever resolves *.local
+      - 192.168.1.2      # optional second internal resolver
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro

DNS race on start occurred: ```shell beszel-agent | 2026/04/15 15:46:32 WARN WebSocket connection failed err="dial tcp: lookup xxx on [::1]:53: read udp [::1]:44557->[::1]:53: read: connection refused" ``` Solutions: ```diff services: beszel-agent: image: henrygd/beszel-agent container_name: beszel-agent network_mode: host restart: unless-stopped + dns: + - 192.168.1.1 # router / Pi-hole / AdGuard / dnsmasq / whatever resolves *.local + - 192.168.1.2 # optional second internal resolver volumes: - /var/run/docker.sock:/var/run/docker.sock:ro ```

skobkin added the

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2026-04-15 16:40:21 +03:00

skobkin self-assigned this

2026-04-15 16:40:21 +03:00

skobkin commented

2026-04-15 16:43:13 +03:00

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Probably also add extra hosts configuration:

services:
  beszel-agent:
    image: henrygd/beszel-agent
    container_name: beszel-agent
    network_mode: host
    restart: unless-stopped
+    extra_hosts:
+      - "beszel.local:192.168.100.50"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro

Probably also add extra hosts configuration: ```diff services: beszel-agent: image: henrygd/beszel-agent container_name: beszel-agent network_mode: host restart: unless-stopped + extra_hosts: + - "beszel.local:192.168.100.50" volumes: - /var/run/docker.sock:/var/run/docker.sock:ro ```