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Aaron Guise
fbb6220728
- New NSDBackend: zone files + nsd-control reload, zone registration via nsd.conf.d include file; mirrors BIND backend interface exactly - BackendRegistry now supports type "nsd"; config defaults for nsd.zones_dir and nsd.nsd_conf - Dockerfile installs both NSD and BIND9 — entrypoint detects configured backend type(s) and starts only the required daemon; CoreDNS MySQL deployments start neither - docker/nsd.conf: minimal NSD base config with remote-control and zones.conf include - entrypoint.sh: reads config file + env vars to determine which daemon to start; runs nsd-control-setup on first boot - 20 new NSD backend tests (117 total, all passing) - README: Topology C (multi-instance + peer sync) documented as most robust HA option; NSD config reference; updated topology comparison table; NSD env-var-only compose examples; version 2.5.0
92 lines
3.0 KiB
Bash
Executable File
92 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
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set -e
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# ---------------------------------------------------------------------------
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# Detect which DNS backend type(s) are configured and enabled.
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# Uses the same config search order as the application itself.
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# ---------------------------------------------------------------------------
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detect_backend_types() {
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python3 - <<'EOF'
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import yaml, sys, os
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config_paths = [
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"/etc/directdnsonly/app.yml",
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"/etc/directdnsonly/app.yaml",
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"/app/app.yml",
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"/app/app.yaml",
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"/app/config/app.yml",
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"/app/config/app.yaml",
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]
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# Also honour env-var-only deployments (no config file)
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bind_env = os.environ.get("DADNS_DNS_BACKENDS_BIND_ENABLED", "").lower() == "true"
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nsd_env = os.environ.get("DADNS_DNS_BACKENDS_NSD_ENABLED", "").lower() == "true"
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config = {}
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for path in config_paths:
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if os.path.exists(path):
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with open(path) as f:
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config = yaml.safe_load(f) or {}
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break
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backends = config.get("dns", {}).get("backends", {})
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has_bind = bind_env
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has_nsd = nsd_env
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for cfg in backends.values():
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if not isinstance(cfg, dict) or not cfg.get("enabled", False):
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continue
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btype = cfg.get("type", "")
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if btype == "bind":
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has_bind = True
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elif btype == "nsd":
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has_nsd = True
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types = []
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if has_bind:
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types.append("bind")
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if has_nsd:
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types.append("nsd")
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print(" ".join(types) if types else "none")
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EOF
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}
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BACKEND_TYPES=$(detect_backend_types)
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echo "[entrypoint] Detected DNS backend type(s): ${BACKEND_TYPES:-none}"
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# ---------------------------------------------------------------------------
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# Start BIND if a bind backend is configured
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# ---------------------------------------------------------------------------
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if echo "$BACKEND_TYPES" | grep -qw "bind"; then
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if command -v named >/dev/null 2>&1; then
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echo "[entrypoint] Starting BIND (named)"
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/usr/sbin/named -u bind -f &
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else
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echo "[entrypoint] WARNING: bind backend configured but 'named' not found — skipping"
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fi
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fi
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# ---------------------------------------------------------------------------
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# Start NSD if an nsd backend is configured
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# ---------------------------------------------------------------------------
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if echo "$BACKEND_TYPES" | grep -qw "nsd"; then
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if command -v nsd >/dev/null 2>&1; then
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echo "[entrypoint] Starting NSD"
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# Ensure nsd-control keys exist (generated on first run)
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if [ ! -f /etc/nsd/nsd_server.key ]; then
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nsd-control-setup 2>/dev/null || true
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fi
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/usr/sbin/nsd -d -c /etc/nsd/nsd.conf &
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else
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echo "[entrypoint] WARNING: nsd backend configured but 'nsd' not found — skipping"
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fi
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fi
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if [ "$BACKEND_TYPES" = "none" ] || [ -z "$BACKEND_TYPES" ]; then
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echo "[entrypoint] No local DNS daemon required (CoreDNS MySQL or similar)"
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fi
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# ---------------------------------------------------------------------------
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# Start the directdnsonly application
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# ---------------------------------------------------------------------------
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exec python -m directdnsonly
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