2023-03-19 21:42:21 +00:00
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// Copyright 2023 Woodpecker Authors
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2018-02-19 22:24:10 +00:00
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// Copyright 2018 Drone.IO Inc.
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2018-03-21 13:02:17 +00:00
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//
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2018-02-19 22:24:10 +00:00
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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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2018-03-21 13:02:17 +00:00
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//
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2018-02-19 22:24:10 +00:00
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// http://www.apache.org/licenses/LICENSE-2.0
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2018-03-21 13:02:17 +00:00
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//
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2018-02-19 22:24:10 +00:00
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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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2017-06-29 22:51:22 +00:00
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package main
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2016-04-20 01:37:53 +00:00
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import (
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2017-03-16 10:14:02 +00:00
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"context"
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2020-05-16 18:56:24 +00:00
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"crypto/tls"
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2023-03-19 21:42:21 +00:00
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"errors"
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2023-04-28 18:41:05 +00:00
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"fmt"
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2017-09-12 18:25:55 +00:00
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"net/http"
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2017-07-19 21:46:03 +00:00
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"os"
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2022-01-17 14:19:30 +00:00
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"runtime"
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2022-05-30 23:12:18 +00:00
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"strings"
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2016-04-20 01:37:53 +00:00
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"sync"
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2023-01-28 13:13:04 +00:00
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"time"
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2016-04-20 01:37:53 +00:00
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2021-10-12 07:25:13 +00:00
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"github.com/rs/zerolog/log"
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2023-09-14 05:34:36 +00:00
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"github.com/tevino/abool/v2"
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2021-10-27 19:03:14 +00:00
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"github.com/urfave/cli/v2"
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2017-06-28 17:21:22 +00:00
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"google.golang.org/grpc"
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2023-05-03 11:31:29 +00:00
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"google.golang.org/grpc/codes"
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2021-10-12 07:25:13 +00:00
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grpccredentials "google.golang.org/grpc/credentials"
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2022-01-29 15:04:50 +00:00
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"google.golang.org/grpc/credentials/insecure"
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2018-01-08 15:28:38 +00:00
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"google.golang.org/grpc/keepalive"
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2017-07-19 21:46:03 +00:00
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"google.golang.org/grpc/metadata"
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2023-05-03 11:31:29 +00:00
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"google.golang.org/grpc/status"
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2017-06-28 17:21:22 +00:00
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2021-09-23 14:58:12 +00:00
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"github.com/woodpecker-ci/woodpecker/agent"
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2023-01-28 13:13:04 +00:00
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agentRpc "github.com/woodpecker-ci/woodpecker/agent/rpc"
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2023-08-07 18:47:30 +00:00
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"github.com/woodpecker-ci/woodpecker/cmd/common"
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2021-11-26 02:34:48 +00:00
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"github.com/woodpecker-ci/woodpecker/pipeline/backend"
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2022-09-05 04:01:14 +00:00
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"github.com/woodpecker-ci/woodpecker/pipeline/backend/types"
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2021-09-24 11:18:34 +00:00
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"github.com/woodpecker-ci/woodpecker/pipeline/rpc"
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2022-02-28 08:27:31 +00:00
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"github.com/woodpecker-ci/woodpecker/shared/utils"
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2022-09-03 18:41:23 +00:00
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"github.com/woodpecker-ci/woodpecker/version"
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2016-04-20 01:37:53 +00:00
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)
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2023-05-03 11:31:29 +00:00
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func run(c *cli.Context) error {
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2023-10-24 10:23:42 +00:00
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common.SetupGlobalLogger(c, true)
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2023-08-07 18:47:30 +00:00
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2023-07-12 16:51:40 +00:00
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agentConfigPath := c.String("agent-config")
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2017-07-19 21:46:03 +00:00
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hostname := c.String("hostname")
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if len(hostname) == 0 {
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hostname, _ = os.Hostname()
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}
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2023-01-28 13:13:04 +00:00
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platform := runtime.GOOS + "/" + runtime.GOARCH
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2022-10-28 15:38:53 +00:00
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counter.Polling = c.Int("max-workflows")
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2017-09-12 20:40:24 +00:00
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counter.Running = 0
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2021-10-27 19:03:14 +00:00
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if c.Bool("healthcheck") {
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go func() {
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Change healtcheck port into address format, redo #1197 (#1423)
As discussed in the comments in PR #1197. Also add documenation
accordingly.
One thing I'm not sure about is the simple check in health.go if the
address is usable in the GET request or not. From reading
https://pkg.go.dev/net#Dial it seems that the only non-standard address
format that would work in the `net` package but not in a GET url would
likely only be `:port`, as the others listed here are actually also
valid urls:
`For TCP, UDP and IP networks, if the host is empty or a literal
unspecified IP address, as in ":80", "0.0.0.0:80" or "[::]:80" for TCP
and UDP, "", "0.0.0.0" or "::" for IP, the local system is assumed.`
One additional thing I noticed is that while `WOODPECKER_SERVER_ADDR`
and `WOODPECKER_SERVER_ADDR` use the default value format of `:PORT`,
`WOODPECKER_SERVER` actually uses `localhost:9000`. I guess it makes a
bit of sense, considering the server might not be local to the agent,
but it looks a bit inconsistent this way. I don't think it would hurt to
make the `WOODPECKER_HEALTHCHECK_ADDR` in this format too, but then it's
different from the server flags again... :-)
2022-11-19 11:06:51 +00:00
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if err := http.ListenAndServe(c.String("healthcheck-addr"), nil); err != nil {
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log.Error().Msgf("cannot listen on address %s: %v", c.String("healthcheck-addr"), err)
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2021-10-27 19:03:14 +00:00
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}
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}()
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2017-09-12 18:25:55 +00:00
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}
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2022-01-29 15:04:50 +00:00
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var transport grpc.DialOption
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2022-01-31 14:38:00 +00:00
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if c.Bool("grpc-secure") {
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2023-08-01 07:06:27 +00:00
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transport = grpc.WithTransportCredentials(grpccredentials.NewTLS(&tls.Config{InsecureSkipVerify: c.Bool("grpc-skip-insecure")}))
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2022-01-29 15:04:50 +00:00
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} else {
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transport = grpc.WithTransportCredentials(insecure.NewCredentials())
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2020-05-16 18:56:24 +00:00
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}
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2023-01-28 13:13:04 +00:00
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authConn, err := grpc.Dial(
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2017-06-28 17:21:22 +00:00
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c.String("server"),
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2020-05-16 18:56:24 +00:00
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transport,
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2023-01-28 13:13:04 +00:00
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grpc.WithKeepaliveParams(keepalive.ClientParameters{
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Time: c.Duration("grpc-keepalive-time"),
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Timeout: c.Duration("grpc-keepalive-timeout"),
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2017-06-29 23:35:38 +00:00
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}),
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2023-01-28 13:13:04 +00:00
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)
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if err != nil {
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return err
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}
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defer authConn.Close()
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2023-07-12 16:51:40 +00:00
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agentConfig := readAgentConfig(agentConfigPath)
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2023-01-28 13:13:04 +00:00
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agentToken := c.String("grpc-token")
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2023-07-12 16:51:40 +00:00
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authClient := agentRpc.NewAuthGrpcClient(authConn, agentToken, agentConfig.AgentID)
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2023-01-28 13:13:04 +00:00
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authInterceptor, err := agentRpc.NewAuthInterceptor(authClient, 30*time.Minute)
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if err != nil {
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return err
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}
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conn, err := grpc.Dial(
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c.String("server"),
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transport,
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2018-01-08 18:47:08 +00:00
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grpc.WithKeepaliveParams(keepalive.ClientParameters{
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2022-01-31 14:38:00 +00:00
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Time: c.Duration("grpc-keepalive-time"),
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Timeout: c.Duration("grpc-keepalive-timeout"),
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2018-01-08 18:47:08 +00:00
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}),
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2023-01-28 13:13:04 +00:00
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grpc.WithUnaryInterceptor(authInterceptor.Unary()),
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grpc.WithStreamInterceptor(authInterceptor.Stream()),
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2017-03-16 10:14:02 +00:00
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)
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if err != nil {
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return err
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2017-03-05 07:56:08 +00:00
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}
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2017-06-28 17:21:22 +00:00
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defer conn.Close()
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2023-01-28 13:13:04 +00:00
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client := agentRpc.NewGrpcClient(conn)
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2017-03-05 07:56:08 +00:00
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2017-03-16 10:14:02 +00:00
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sigterm := abool.New()
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2017-07-19 21:46:03 +00:00
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ctx := metadata.NewOutgoingContext(
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context.Background(),
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metadata.Pairs("hostname", hostname),
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)
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2022-02-28 08:27:31 +00:00
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ctx = utils.WithContextSigtermCallback(ctx, func() {
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2017-03-16 10:14:02 +00:00
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println("ctrl+c received, terminating process")
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sigterm.Set()
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})
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2016-09-29 21:45:13 +00:00
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2023-03-19 21:42:21 +00:00
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// check if grpc server version is compatible with agent
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grpcServerVersion, err := client.Version(ctx)
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if err != nil {
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log.Error().Err(err).Msg("could not get grpc server version")
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return err
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}
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if grpcServerVersion.GrpcVersion != agentRpc.ClientGrpcVersion {
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err := errors.New("GRPC version mismatch")
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log.Error().Err(err).Msgf("Server version %s does report grpc version %d but we only understand %d",
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grpcServerVersion.ServerVersion,
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grpcServerVersion.GrpcVersion,
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agentRpc.ClientGrpcVersion)
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return err
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}
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2023-03-19 19:24:43 +00:00
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backendCtx := context.WithValue(ctx, types.CliContext, c)
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backend.Init(backendCtx)
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2022-09-05 04:01:14 +00:00
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2017-03-16 10:14:02 +00:00
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var wg sync.WaitGroup
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2022-10-28 15:38:53 +00:00
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parallel := c.Int("max-workflows")
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2017-03-16 10:14:02 +00:00
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wg.Add(parallel)
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2016-09-29 21:45:13 +00:00
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2022-09-03 18:41:23 +00:00
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// new engine
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2023-03-19 19:24:43 +00:00
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engine, err := backend.FindEngine(backendCtx, c.String("backend-engine"))
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2022-09-03 18:41:23 +00:00
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if err != nil {
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log.Error().Err(err).Msgf("cannot find backend engine '%s'", c.String("backend-engine"))
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return err
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}
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2023-07-12 16:51:40 +00:00
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agentConfig.AgentID, err = client.RegisterAgent(ctx, platform, engine.Name(), version.String(), parallel)
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2023-01-28 13:13:04 +00:00
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if err != nil {
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return err
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}
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2023-07-12 16:51:40 +00:00
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writeAgentConfig(agentConfig, agentConfigPath)
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2023-07-02 15:22:05 +00:00
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2023-04-03 10:30:52 +00:00
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labels := map[string]string{
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"hostname": hostname,
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"platform": platform,
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"backend": engine.Name(),
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"repo": "*", // allow all repos by default
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}
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2023-04-28 18:41:05 +00:00
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if err := stringSliceAddToMap(c.StringSlice("filter"), labels); err != nil {
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return err
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2023-04-03 10:30:52 +00:00
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}
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filter := rpc.Filter{
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Labels: labels,
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}
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2023-07-12 16:51:40 +00:00
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log.Debug().Msgf("Agent registered with ID %d", agentConfig.AgentID)
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2023-01-28 13:13:04 +00:00
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go func() {
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for {
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if sigterm.IsSet() {
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return
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}
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err := client.ReportHealth(ctx)
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if err != nil {
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log.Err(err).Msgf("Failed to report health")
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return
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}
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<-time.After(time.Second * 10)
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}
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}()
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2023-07-20 18:39:20 +00:00
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// load engine (e.g. init api client)
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if err := engine.Load(backendCtx); err != nil {
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log.Error().Err(err).Msg("cannot load backend engine")
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return err
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}
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log.Debug().Msgf("loaded %s backend engine", engine.Name())
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2017-03-16 10:14:02 +00:00
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for i := 0; i < parallel; i++ {
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2023-07-20 18:39:20 +00:00
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i := i
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2017-03-16 10:14:02 +00:00
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go func() {
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defer wg.Done()
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2021-09-23 14:58:12 +00:00
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2022-03-08 15:21:43 +00:00
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r := agent.NewRunner(client, filter, hostname, counter, &engine)
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2023-07-20 18:39:20 +00:00
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log.Debug().Msgf("created new runner %d", i)
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2022-03-08 15:21:43 +00:00
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for {
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if sigterm.IsSet() {
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2021-11-26 02:34:48 +00:00
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return
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}
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2022-10-28 15:38:53 +00:00
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log.Debug().Msg("polling new steps")
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2021-09-23 14:58:12 +00:00
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if err := r.Run(ctx); err != nil {
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2017-08-03 19:36:22 +00:00
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log.Error().Err(err).Msg("pipeline done with error")
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2017-03-16 10:14:02 +00:00
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return
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}
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}
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}()
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2016-04-20 01:37:53 +00:00
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}
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2016-05-24 01:47:44 +00:00
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2022-09-03 18:41:23 +00:00
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log.Info().Msgf(
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2023-01-28 13:13:04 +00:00
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"Starting Woodpecker agent with version '%s' and backend '%s' using platform '%s' running up to %d pipelines in parallel",
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version.String(), engine.Name(), platform, parallel)
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2022-09-03 18:41:23 +00:00
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2017-03-16 10:14:02 +00:00
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wg.Wait()
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return nil
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}
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2023-04-28 18:41:05 +00:00
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2023-05-03 11:31:29 +00:00
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func runWithRetry(context *cli.Context) error {
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retryCount := context.Int("connect-retry-count")
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retryDelay := context.Duration("connect-retry-delay")
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var err error
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for i := 0; i < retryCount; i++ {
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if err = run(context); status.Code(err) == codes.Unavailable {
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log.Warn().Err(err).Msg(fmt.Sprintf("cannot connect to server, retrying in %v", retryDelay))
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time.Sleep(retryDelay)
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} else {
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break
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}
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}
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return err
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}
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2023-04-28 18:41:05 +00:00
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func stringSliceAddToMap(sl []string, m map[string]string) error {
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if m == nil {
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m = make(map[string]string)
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}
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for _, v := range sl {
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parts := strings.SplitN(v, "=", 2)
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switch len(parts) {
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case 2:
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m[parts[0]] = parts[1]
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case 1:
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return fmt.Errorf("key '%s' does not have a value assigned", parts[0])
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default:
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return fmt.Errorf("empty string in slice")
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}
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}
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return nil
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}
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