wangbo
85e14f2cb8
节点首次安装 wireguard-tools 时 apt 输出会混入公钥命令替换，导致格式门禁误判并安全停止。仅取远端输出最后一行作为公钥，同时保留原有长度和字符校验。 验证：bash -n、ShellCheck、远端公钥长度与权限只读检查。
108 lines
3.1 KiB
Bash
Executable File
108 lines
3.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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script_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
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# shellcheck source=scripts/cluster/common.sh
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source "$script_dir/common.sh"
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load_cluster_env
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require_commands ssh scp
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hosts=("$CLUSTER_NINGBO_HOST" "$CLUSTER_HONGKONG_HOST" "$CLUSTER_LOS_ANGELES_HOST")
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public_endpoints=("${CLUSTER_NINGBO_HOST#*@}" "${CLUSTER_HONGKONG_HOST#*@}" "${CLUSTER_LOS_ANGELES_HOST#*@}")
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wireguard_ips=(10.77.0.1 10.77.0.2 10.77.0.3)
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public_keys=()
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for host in "${hosts[@]}"; do
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echo "[wireguard] preparing $host"
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public_key=$(cluster_ssh "$host" 'bash -s' <<'REMOTE' | tail -n 1
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set -euo pipefail
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export DEBIAN_FRONTEND=noninteractive
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if ! command -v wg >/dev/null 2>&1; then
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apt-get update -qq
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apt-get install -y -qq wireguard-tools
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fi
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install -d -m 0700 /etc/wireguard
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if [[ ! -s /etc/wireguard/privatekey ]]; then
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umask 077
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wg genkey >/etc/wireguard/privatekey
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fi
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chmod 0600 /etc/wireguard/privatekey
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wg pubkey </etc/wireguard/privatekey >/etc/wireguard/publickey
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cat /etc/wireguard/publickey
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REMOTE
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)
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[[ $public_key =~ ^[A-Za-z0-9+/]{43}=$ ]] || {
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echo "invalid WireGuard public key returned by $host" >&2
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exit 1
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}
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public_keys+=("$public_key")
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done
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for local_index in 0 1 2; do
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peer_indexes=()
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for candidate in 0 1 2; do
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[[ $candidate -eq $local_index ]] || peer_indexes+=("$candidate")
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done
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first=${peer_indexes[0]}
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second=${peer_indexes[1]}
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echo "[wireguard] configuring ${hosts[$local_index]} as ${wireguard_ips[$local_index]}"
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cluster_ssh "${hosts[$local_index]}" bash -s -- \
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"${wireguard_ips[$local_index]}" \
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"${public_keys[$first]}" "${public_endpoints[$first]}" "${wireguard_ips[$first]}" \
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"${public_keys[$second]}" "${public_endpoints[$second]}" "${wireguard_ips[$second]}" <<'REMOTE'
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set -euo pipefail
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local_ip=$1
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peer_one_key=$2
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peer_one_endpoint=$3
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peer_one_ip=$4
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peer_two_key=$5
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peer_two_endpoint=$6
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peer_two_ip=$7
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private_key=$(cat /etc/wireguard/privatekey)
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umask 077
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temporary_config=$(mktemp /etc/wireguard/wg0.conf.XXXXXX)
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cat >"$temporary_config" <<EOF
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[Interface]
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Address = ${local_ip}/24
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ListenPort = 51820
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PrivateKey = ${private_key}
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[Peer]
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PublicKey = ${peer_one_key}
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Endpoint = ${peer_one_endpoint}:51820
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AllowedIPs = ${peer_one_ip}/32
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PersistentKeepalive = 25
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[Peer]
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PublicKey = ${peer_two_key}
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Endpoint = ${peer_two_endpoint}:51820
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AllowedIPs = ${peer_two_ip}/32
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PersistentKeepalive = 25
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EOF
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chmod 0600 "$temporary_config"
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mv "$temporary_config" /etc/wireguard/wg0.conf
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systemctl enable wg-quick@wg0 >/dev/null
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systemctl restart wg-quick@wg0
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REMOTE
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done
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for source_index in 0 1 2; do
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for target_index in 0 1 2; do
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[[ $source_index -eq $target_index ]] && continue
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cluster_ssh "${hosts[$source_index]}" \
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"ping -c 3 -W 2 ${wireguard_ips[$target_index]} >/dev/null"
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done
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done
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for host in "${hosts[@]}"; do
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latest_handshake=$(cluster_ssh "$host" \
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"wg show wg0 latest-handshakes | awk '\$2 > 0 { count++ } END { print count + 0 }'")
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[[ $latest_handshake == 2 ]] || {
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echo "WireGuard handshake verification failed on $host" >&2
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exit 1
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}
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done
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echo 'wireguard_bootstrap=PASS peers=3'
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