Merge pull request #170 from outis1one/claude/asterisk-dns-filtering-vlan-5pmz12

asterisk: default to FQDN mode, auto-detect VLANs, auto-sync Caddy certs
2026-07-01 23:52:47 -04:00
parent 4c1d8858a1 225e277abb
commit 78f6365bbe
2 changed files with 150 additions and 4 deletions
@@ -244,16 +244,42 @@ install_asterisk() {
    # ── Networking mode ───────────────────────────────────────────────────────
    echo ""
    echo "  Networking mode:"
-    echo "    1) LAN-only  — no domain, self-signed cert, works on local network/VPN only"
-    echo "    2) FQDN      — TLS + TURN relay, works from anywhere (requires public domain)"
+    echo "    1) FQDN (recommended) — TLS + TURN relay, every phone connects the"
+    echo "                            same way regardless of LAN/VLAN/remote"
+    echo "    2) LAN-only           — no domain, self-signed cert, local network/VPN only"
    local HA_NETMODE=""
    prompt_text "Choose [1]:" "1" HA_NETMODE

    local DOMAIN_NAME=""
-    if [[ "$HA_NETMODE" == "2" ]]; then
-        prompt_text "FQDN (e.g. asterisk.${SITE_DOMAIN:-example.com}) [blank=skip]:" "" DOMAIN_NAME
+    if [[ "$HA_NETMODE" != "2" ]]; then
+        prompt_text "FQDN (e.g. asterisk.${SITE_DOMAIN:-example.com}) [blank=fall back to LAN-only]:" "" DOMAIN_NAME
+        [[ -z "$DOMAIN_NAME" ]] && log_warning "No FQDN entered — proceeding in LAN-only mode."
    fi

+    # ── Local networks / VLANs ────────────────────────────────────────────────
+    # Feeds HAS_VLANS/VLAN_SUBNETS into .env, which the entrypoint reads to add
+    # extra local_net= entries in pjsip.conf so phones on those subnets get
+    # correct NAT/SDP handling (this is what fixes the "no sound" symptom for
+    # devices on a VLAN the server isn't itself attached to).
+    echo ""
+    echo "  Detecting networks this host can see..."
+    local DETECTED_NETS=""
+    DETECTED_NETS="$(ip -o -f inet addr show scope global 2>/dev/null \
+        | awk '{print $2, $4}' \
+        | grep -Ev '^(docker|br-|veth|tun|tap|wg)' \
+        | awk '{ split($2,a,"/"); split(a[1],o,"."); print o[1]"."o[2]"."o[3]".0/"a[2] }' \
+        | sort -u)"
+    if [[ -n "$DETECTED_NETS" ]]; then
+        echo "  This host is directly attached to:"
+        echo "$DETECTED_NETS" | sed 's/^/    /'
+    fi
+    echo "  Phones on OTHER VLANs (this server usually can't see those directly)"
+    echo "  still need to be listed here so their media is treated as local/trusted."
+    local VLAN_SUBNETS_VAL=""
+    prompt_text "VLAN/VPN subnets, space-separated CIDRs [blank=none]:" "" VLAN_SUBNETS_VAL
+    local HAS_VLANS_VAL="n"
+    [[ -n "$VLAN_SUBNETS_VAL" ]] && HAS_VLANS_VAL="y"
+
    # ── Secrets ───────────────────────────────────────────────────────────────
    local TURN_PASSWORD
    TURN_PASSWORD="$(generate_password 24)"
@@ -280,6 +306,7 @@ services:
      - ./spool:/var/spool/asterisk
      - ./lib:/var/lib/asterisk
      - ./easy-asterisk.sh:/usr/local/bin/easy-asterisk:ro
+CADDY_VOLUME_PLACEHOLDER
    env_file: .env
    restart: unless-stopped
    healthcheck:
@@ -316,6 +343,15 @@ services:

 EOF

+    # Share Caddy's cert store (read-only) so the entrypoint can auto-sync a
+    # real Let's Encrypt cert for DOMAIN_NAME instead of falling back to
+    # self-signed. No-op if Caddy isn't installed on this box.
+    if [[ -d "$DOCKER_DIR/caddy/data" ]]; then
+        sed -i "s#CADDY_VOLUME_PLACEHOLDER#      - ${DOCKER_DIR}/caddy/data:/caddy-data:ro#" docker-compose.yml
+    else
+        sed -i "/CADDY_VOLUME_PLACEHOLDER/d" docker-compose.yml
+    fi
+
    # ── .env ──────────────────────────────────────────────────────────────────
    cat > .env << ENV
 # ── Domain ────────────────────────────────────────────────────
@@ -333,6 +369,12 @@ TURN_SERVER=${TURN_SERVER_VAL}
 RTP_START=10000
 RTP_END=20000

+# ── VLAN/VPN subnets ──────────────────────────────────────────
+# Extra local_net= entries for phones on networks this server isn't
+# itself attached to. Space-separated CIDRs.
+HAS_VLANS=${HAS_VLANS_VAL}
+VLAN_SUBNETS=${VLAN_SUBNETS_VAL}
+
 # ── Web admin ─────────────────────────────────────────────────
 WEB_ADMIN_PORT=8080
 WEB_ADMIN_AUTH_DISABLED=false
@@ -404,6 +446,34 @@ docker exec -it easy-asterisk easy-asterisk --help

 Recommended softphones: Linphone, Zoiper, Bria, Grandstream Wave.

+For a phone to work the same way regardless of network (LAN, VLAN, remote,
+no VPN), register it against `<DOMAIN_NAME>:5061` over TLS — that's what
+FQDN mode is for. Plain UDP/TCP on 5060 still works for LAN-only devices,
+but only the FQDN+TLS path is location-independent.
+
+## VLANs / other subnets
+
+`.env` → `HAS_VLANS`/`VLAN_SUBNETS` lists extra networks (space-separated
+CIDRs) this server isn't itself attached to but that phones live on. These
+become `local_net=` entries in `pjsip.conf` so NAT/SDP handling is correct
+for those devices (missing entries here is the most common cause of calls
+connecting with no audio). To change this after install:
+
+```bash
+docker exec -it easy-asterisk easy-asterisk
+# Server Settings → Configure VLAN/VPN Subnets
+```
+
+## TLS certificate
+
+If Caddy is installed and already holds a Let's Encrypt cert for
+`DOMAIN_NAME` (i.e. there's a Caddyfile site block for that exact hostname),
+the container mounts Caddy's cert store read-only and the entrypoint syncs
+it in automatically on every start — and re-checks every 12h so renewals
+get picked up without a restart. No Caddyfile block for the domain, or no
+Caddy at all, falls back to a self-signed cert (phones must be configured
+to accept it).
+
 ## Web admin

 Access the Easy Asterisk web interface at http://<host-ip>:8080
@@ -73,8 +73,38 @@ if [[ "$raw_cidr" =~ \.([0-9]+)/([0-9]+)$ ]]; then
    default_cidr="${raw_cidr%.*}.0/${BASH_REMATCH[2]}"
 fi

+# ── 4b. Sync Caddy-issued TLS cert (if the compose file shared it) ───────
+# If services/asterisk.sh mounted Caddy's data dir read-only at /caddy-data,
+# and Caddy already holds a real Let's Encrypt cert for our own DOMAIN_NAME
+# (e.g. because a matching site block exists in the Caddyfile), prefer that
+# over a self-signed cert — phones then get a CA-trusted TLS connection.
+CADDY_CERT_DIR="/caddy-data/caddy/certificates/acme-v02.api.letsencrypt.org-directory"
+sync_caddy_cert() {
+    [[ -n "${DOMAIN_NAME:-}" ]] || return 1
+    local src_crt="${CADDY_CERT_DIR}/${DOMAIN_NAME}/${DOMAIN_NAME}.crt"
+    local src_key="${CADDY_CERT_DIR}/${DOMAIN_NAME}/${DOMAIN_NAME}.key"
+    [[ -f "$src_crt" && -f "$src_key" ]] || return 1
+
+    if [[ -f /etc/asterisk/certs/server.crt ]] && cmp -s "$src_crt" /etc/asterisk/certs/server.crt; then
+        return 1   # already in sync
+    fi
+
+    mkdir -p /etc/asterisk/certs
+    cp "$src_crt" /etc/asterisk/certs/server.crt
+    cp "$src_key" /etc/asterisk/certs/server.key
+    chown asterisk:asterisk /etc/asterisk/certs/server.crt /etc/asterisk/certs/server.key
+    chmod 644 /etc/asterisk/certs/server.crt
+    chmod 600 /etc/asterisk/certs/server.key
+    return 0
+}
+
+if [[ -d "$CADDY_CERT_DIR" ]] && sync_caddy_cert; then
+    log_info "Synced Caddy-issued Let's Encrypt cert for ${DOMAIN_NAME} (CA-trusted, no self-signed warning)"
+fi
+
 # ── 5. Generate self-signed certs ──────────────────────────────
 # Regenerate if missing OR if existing cert lacks SANs (modern TLS clients require them)
+# Skipped entirely if the Caddy sync above just installed a real cert.
 regen_cert=false
 if [[ ! -f /etc/asterisk/certs/server.crt ]]; then
    regen_cert=true
@@ -279,6 +309,38 @@ EOF
    chown asterisk:asterisk /etc/asterisk/pjsip.conf
 fi

+# ── Ensure transport-udp/transport-tcp exist (same migration path as TLS) ──
+# Same scenario as above: a preserved/migrated pjsip.conf can be missing the
+# plain SIP transports entirely, silently, with no bind error — LAN/VLAN
+# devices registering without TLS then can never connect. Inject if absent.
+if [[ -f /etc/asterisk/pjsip.conf ]] && ! grep -q "^\[transport-udp\]" /etc/asterisk/pjsip.conf; then
+    log_info "transport-udp missing from pjsip.conf — adding UDP transport..."
+    cat >> /etc/asterisk/pjsip.conf << EOF
+
+[transport-udp]
+type=transport
+protocol=udp
+bind=0.0.0.0:5060
+${nat_settings}
+
+EOF
+    chown asterisk:asterisk /etc/asterisk/pjsip.conf
+fi
+
+if [[ -f /etc/asterisk/pjsip.conf ]] && ! grep -q "^\[transport-tcp\]" /etc/asterisk/pjsip.conf; then
+    log_info "transport-tcp missing from pjsip.conf — adding TCP transport..."
+    cat >> /etc/asterisk/pjsip.conf << EOF
+
+[transport-tcp]
+type=transport
+protocol=tcp
+bind=0.0.0.0:5060
+${nat_settings}
+
+EOF
+    chown asterisk:asterisk /etc/asterisk/pjsip.conf
+fi
+
 # ── rtp.conf (always regenerated) ──
 # ICE is enabled so Asterisk participates in ICE negotiation with clients.
 # stunaddr/turnaddr are NOT set here because:
@@ -378,6 +440,20 @@ if [[ -f "$WEB_ADMIN_SCRIPT" ]]; then
    python3 "$WEB_ADMIN_SCRIPT" &
 fi

+# ── 10b. Keep the Caddy-issued cert fresh across renewals ────────────────
+# Let's Encrypt certs renew every ~60-90 days without the container restarting.
+# Re-check periodically and hot-reload Asterisk when Caddy's copy changes.
+if [[ -d "$CADDY_CERT_DIR" ]]; then
+    (
+        while sleep 43200; do   # every 12h
+            if sync_caddy_cert; then
+                log_info "Caddy cert renewed for ${DOMAIN_NAME} — reloading Asterisk"
+                asterisk -rx "core reload" >/dev/null 2>&1 || true
+            fi
+        done
+    ) &
+fi
+
 # ── 11. Signal handling for clean shutdown ────────────────────
 cleanup() {
    log_info "Shutting down..."