99 lines
2.8 KiB
Bash
99 lines
2.8 KiB
Bash
#!/bin/bash
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set -euo pipefail
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echo "[INFO] Starting proxy under supervisor..."
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TEMPLATE="/etc/nginx/nginx.conf.template"
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TARGET="/etc/nginx/nginx.conf"
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DNS_CONF_PRIVATE="/private/argus/etc/dns.conf"
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DNS_CONF_SYSTEM="/etc/resolv.conf"
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DNS_DIR="/private/argus/etc"
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DNS_SCRIPT="${DNS_DIR}/update-dns.sh"
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RUNTIME_UID="${ARGUS_BUILD_UID:-2133}"
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RUNTIME_GID="${ARGUS_BUILD_GID:-2015}"
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mkdir -p "$DNS_DIR"
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chown -R "$RUNTIME_UID:$RUNTIME_GID" "$DNS_DIR" 2>/dev/null || true
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if [[ -x "$DNS_SCRIPT" ]]; then
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echo "[INFO] Running update-dns.sh before master starts"
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# 若脚本存在则执行，保证容器使用 bind 作为 DNS
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"$DNS_SCRIPT" || echo "[WARN] update-dns.sh execution failed"
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else
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echo "[WARN] DNS update script not found or not executable: $DNS_SCRIPT"
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fi
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# ========== 读取 DNS ==========
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RESOLVERS=""
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# 优先等待 /private/argus/etc/dns.conf 生成并读取其中的 IP
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for i in $(seq 1 10); do
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if [ -f "$DNS_CONF_PRIVATE" ]; then
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RESOLVERS=$(awk '/^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$/{print $1}' "$DNS_CONF_PRIVATE" | tr '\n' ' ')
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fi
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[ -n "$RESOLVERS" ] && break
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sleep 1
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done
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# 若仍为空则回退到系统 resolv.conf
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if [ -z "$RESOLVERS" ]; then
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echo "未在 $DNS_CONF_PRIVATE 中找到有效 DNS，使用系统 /etc/resolv.conf"
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RESOLVERS=$(awk '/^nameserver/ {print $2}' "$DNS_CONF_SYSTEM" | tr '\n' ' ')
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fi
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# 最后兜底：若仍为空，使用公共 DNS
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if [ -z "$RESOLVERS" ]; then
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echo "警告: 未找到任何 DNS，使用默认 8.8.8.8"
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RESOLVERS="8.8.8.8"
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fi
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echo "检测到 DNS 服务器列表: $RESOLVERS"
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# ========== 生成 nginx.conf ==========
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if [ -f "$TEMPLATE" ]; then
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echo "从模板生成 nginx.conf ..."
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# 合并 Docker 内置 DNS 以保障解析 Compose 服务名
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# 将 127.0.0.11 放在末尾，优先使用 /private/argus/etc/dns.conf 指向的 bind
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if ! echo " $RESOLVERS " | grep -q " 127.0.0.11 "; then
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RESOLVERS="${RESOLVERS} 127.0.0.11"
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fi
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sed "s|__RESOLVERS__|$RESOLVERS|" "$TEMPLATE" > "$TARGET"
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else
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echo "错误: 找不到 nginx.conf.template ($TEMPLATE)"
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exit 1
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fi
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# 打印生成结果供排查
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grep resolver "$TARGET" || true
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# ========== 等待上游域名准备（避免启动即解析失败） ==========
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UPSTREAM_DOMAINS=(
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web.argus.com
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grafana.metric.argus.com
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prom.metric.argus.com
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kibana.log.argus.com
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alertmanager.alert.argus.com
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master.argus.com
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)
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WAIT_MAX=15
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WAITED=0
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MISSING=()
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while :; do
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MISSING=()
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for d in "${UPSTREAM_DOMAINS[@]}"; do
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if [ ! -s "/private/argus/etc/${d}" ]; then
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MISSING+=("$d")
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fi
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done
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if [ ${#MISSING[@]} -eq 0 ] || [ "$WAITED" -ge "$WAIT_MAX" ]; then
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break
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fi
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echo "[INFO] 等待上游域名记录生成(${WAITED}/${WAIT_MAX}) 缺失: ${MISSING[*]}"
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sleep 1
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WAITED=$((WAITED+1))
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done
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echo "[INFO] Launching nginx..."
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# 启动 nginx 前台模式
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exec /usr/sbin/nginx -g "daemon off;"
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