mirror of
https://github.com/agent-substrate/substrate.git
synced 2026-10-02 03:24:42 +08:00
Eric Curtin
7317e083cf
Fixes #687 Both ateoms build atunnel through the new `internal/ateomtunnel`. - [x] Tests pass - [x] Appropriate changes to documentation are included in the PR
59 lines
1.9 KiB
Go
59 lines
1.9 KiB
Go
//go:build linux
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// Copyright 2026 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package main
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import (
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"context"
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"errors"
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"fmt"
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"io/fs"
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"log/slog"
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"os"
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"path/filepath"
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"github.com/agent-substrate/substrate/internal/ateomnet"
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"github.com/agent-substrate/substrate/internal/ateomnet/dns"
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"github.com/agent-substrate/substrate/internal/proto/ateompb"
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)
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// actorResolvConf writes the resolver bind source outside the actor's rootfs.
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func actorResolvConf(actorDirs *ateompb.ActorDirs) (string, error) {
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pod, err := os.ReadFile("/etc/resolv.conf")
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if err != nil {
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return "", fmt.Errorf("reading the worker pod resolv.conf: %w", err)
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}
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path := resolvConfPath(actorDirs)
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if err := os.MkdirAll(filepath.Dir(path), 0o700); err != nil {
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return "", fmt.Errorf("creating the actor directory: %w", err)
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}
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if err := os.WriteFile(path, dns.SandboxResolvConf(ateomnet.ActorVethGateway, pod), 0o644); err != nil {
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return "", fmt.Errorf("writing the actor resolv.conf: %w", err)
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}
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return path, nil
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}
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// removeActorResolvConf drops the file with the actor's network; atelet's
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// per-activation reset clears directories under the actor's path, not files.
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func removeActorResolvConf(ctx context.Context, path string) {
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if path == "" {
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return
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}
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if err := os.Remove(path); err != nil && !errors.Is(err, fs.ErrNotExist) {
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slog.WarnContext(ctx, "Failed to remove the actor resolv.conf", slog.Any("err", err))
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}
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}
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