2017-10-17 10:55:04 +00:00
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package agent
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2013-12-19 20:18:06 +00:00
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import (
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2020-06-19 19:16:00 +00:00
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"context"
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2017-10-17 10:55:04 +00:00
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"flag"
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2013-12-20 01:14:46 +00:00
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"fmt"
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2013-12-21 00:39:32 +00:00
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"os"
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"os/signal"
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2014-09-02 21:23:43 +00:00
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"path/filepath"
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2013-12-19 20:18:06 +00:00
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"strings"
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2013-12-21 00:39:32 +00:00
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"syscall"
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"time"
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2014-06-16 21:36:12 +00:00
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2020-12-21 18:25:32 +00:00
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"github.com/hashicorp/go-checkpoint"
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"github.com/hashicorp/go-hclog"
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"github.com/mitchellh/cli"
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pkg refactor
command/agent/* -> agent/*
command/consul/* -> agent/consul/*
command/agent/command{,_test}.go -> command/agent{,_test}.go
command/base/command.go -> command/base.go
command/base/* -> command/*
commands.go -> command/commands.go
The script which did the refactor is:
(
cd $GOPATH/src/github.com/hashicorp/consul
git mv command/agent/command.go command/agent.go
git mv command/agent/command_test.go command/agent_test.go
git mv command/agent/flag_slice_value{,_test}.go command/
git mv command/agent .
git mv command/base/command.go command/base.go
git mv command/base/config_util{,_test}.go command/
git mv commands.go command/
git mv consul agent
rmdir command/base/
gsed -i -e 's|package agent|package command|' command/agent{,_test}.go
gsed -i -e 's|package agent|package command|' command/flag_slice_value{,_test}.go
gsed -i -e 's|package base|package command|' command/base.go command/config_util{,_test}.go
gsed -i -e 's|package main|package command|' command/commands.go
gsed -i -e 's|base.Command|BaseCommand|' command/commands.go
gsed -i -e 's|agent.Command|AgentCommand|' command/commands.go
gsed -i -e 's|\tCommand:|\tBaseCommand:|' command/commands.go
gsed -i -e 's|base\.||' command/commands.go
gsed -i -e 's|command\.||' command/commands.go
gsed -i -e 's|command|c|' main.go
gsed -i -e 's|range Commands|range command.Commands|' main.go
gsed -i -e 's|Commands: Commands|Commands: command.Commands|' main.go
gsed -i -e 's|base\.BoolValue|BoolValue|' command/operator_autopilot_set.go
gsed -i -e 's|base\.DurationValue|DurationValue|' command/operator_autopilot_set.go
gsed -i -e 's|base\.StringValue|StringValue|' command/operator_autopilot_set.go
gsed -i -e 's|base\.UintValue|UintValue|' command/operator_autopilot_set.go
gsed -i -e 's|\bCommand\b|BaseCommand|' command/base.go
gsed -i -e 's|BaseCommand Options|Command Options|' command/base.go
gsed -i -e 's|base.Command|BaseCommand|' command/*.go
gsed -i -e 's|c\.Command|c.BaseCommand|g' command/*.go
gsed -i -e 's|\tCommand:|\tBaseCommand:|' command/*_test.go
gsed -i -e 's|base\.||' command/*_test.go
gsed -i -e 's|\bCommand\b|AgentCommand|' command/agent{,_test}.go
gsed -i -e 's|cmd.AgentCommand|cmd.BaseCommand|' command/agent.go
gsed -i -e 's|cli.AgentCommand = new(Command)|cli.Command = new(AgentCommand)|' command/agent_test.go
gsed -i -e 's|exec.AgentCommand|exec.Command|' command/agent_test.go
gsed -i -e 's|exec.BaseCommand|exec.Command|' command/agent_test.go
gsed -i -e 's|NewTestAgent|agent.NewTestAgent|' command/agent_test.go
gsed -i -e 's|= TestConfig|= agent.TestConfig|' command/agent_test.go
gsed -i -e 's|: RetryJoin|: agent.RetryJoin|' command/agent_test.go
gsed -i -e 's|\.\./\.\./|../|' command/config_util_test.go
gsed -i -e 's|\bverifyUniqueListeners|VerifyUniqueListeners|' agent/config{,_test}.go command/agent.go
gsed -i -e 's|\bserfLANKeyring\b|SerfLANKeyring|g' agent/{agent,keyring,testagent}.go command/agent.go
gsed -i -e 's|\bserfWANKeyring\b|SerfWANKeyring|g' agent/{agent,keyring,testagent}.go command/agent.go
gsed -i -e 's|\bNewAgent\b|agent.New|g' command/agent{,_test}.go
gsed -i -e 's|\bNewAgent|New|' agent/{acl_test,agent,testagent}.go
gsed -i -e 's|\bAgent\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bBool\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bConfig\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bDefaultConfig\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bDevConfig\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bMergeConfig\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bReadConfigPaths\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bParseMetaPair\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bSerfLANKeyring\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bSerfWANKeyring\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|circonus\.agent|circonus|g' command/agent{,_test}.go
gsed -i -e 's|logger\.agent|logger|g' command/agent{,_test}.go
gsed -i -e 's|metrics\.agent|metrics|g' command/agent{,_test}.go
gsed -i -e 's|// agent.Agent|// agent|' command/agent{,_test}.go
gsed -i -e 's|a\.agent\.Config|a.Config|' command/agent{,_test}.go
gsed -i -e 's|agent\.AppendSliceValue|AppendSliceValue|' command/{configtest,validate}.go
gsed -i -e 's|consul/consul|agent/consul|' GNUmakefile
gsed -i -e 's|\.\./test|../../test|' agent/consul/server_test.go
# fix imports
f=$(grep -rl 'github.com/hashicorp/consul/command/agent' * | grep '\.go')
gsed -i -e 's|github.com/hashicorp/consul/command/agent|github.com/hashicorp/consul/agent|' $f
goimports -w $f
f=$(grep -rl 'github.com/hashicorp/consul/consul' * | grep '\.go')
gsed -i -e 's|github.com/hashicorp/consul/consul|github.com/hashicorp/consul/agent/consul|' $f
goimports -w $f
goimports -w command/*.go main.go
)
2017-06-09 22:28:28 +00:00
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"github.com/hashicorp/consul/agent"
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2017-09-25 18:40:42 +00:00
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"github.com/hashicorp/consul/agent/config"
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2017-10-17 10:55:04 +00:00
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"github.com/hashicorp/consul/command/flags"
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2016-01-29 19:42:34 +00:00
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"github.com/hashicorp/consul/lib"
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2020-01-28 23:50:41 +00:00
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"github.com/hashicorp/consul/logging"
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2018-06-20 18:30:17 +00:00
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"github.com/hashicorp/consul/service_os"
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2013-12-19 20:18:06 +00:00
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)
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2017-10-17 10:55:04 +00:00
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func New(ui cli.Ui, revision, version, versionPre, versionHuman string, shutdownCh <-chan struct{}) *cmd {
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ui = &cli.PrefixedUi{
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OutputPrefix: "==> ",
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InfoPrefix: " ",
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ErrorPrefix: "==> ",
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Ui: ui,
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}
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c := &cmd{
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UI: ui,
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revision: revision,
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version: version,
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versionPrerelease: versionPre,
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versionHuman: versionHuman,
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shutdownCh: shutdownCh,
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2020-12-21 21:18:03 +00:00
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flags: flag.NewFlagSet("", flag.ContinueOnError),
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2017-10-17 10:55:04 +00:00
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}
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2020-12-21 21:18:03 +00:00
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config.AddFlags(c.flags, &c.configLoadOpts)
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c.help = flags.Usage(help, c.flags)
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2017-10-17 10:55:04 +00:00
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return c
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}
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2014-06-09 18:57:15 +00:00
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pkg refactor
command/agent/* -> agent/*
command/consul/* -> agent/consul/*
command/agent/command{,_test}.go -> command/agent{,_test}.go
command/base/command.go -> command/base.go
command/base/* -> command/*
commands.go -> command/commands.go
The script which did the refactor is:
(
cd $GOPATH/src/github.com/hashicorp/consul
git mv command/agent/command.go command/agent.go
git mv command/agent/command_test.go command/agent_test.go
git mv command/agent/flag_slice_value{,_test}.go command/
git mv command/agent .
git mv command/base/command.go command/base.go
git mv command/base/config_util{,_test}.go command/
git mv commands.go command/
git mv consul agent
rmdir command/base/
gsed -i -e 's|package agent|package command|' command/agent{,_test}.go
gsed -i -e 's|package agent|package command|' command/flag_slice_value{,_test}.go
gsed -i -e 's|package base|package command|' command/base.go command/config_util{,_test}.go
gsed -i -e 's|package main|package command|' command/commands.go
gsed -i -e 's|base.Command|BaseCommand|' command/commands.go
gsed -i -e 's|agent.Command|AgentCommand|' command/commands.go
gsed -i -e 's|\tCommand:|\tBaseCommand:|' command/commands.go
gsed -i -e 's|base\.||' command/commands.go
gsed -i -e 's|command\.||' command/commands.go
gsed -i -e 's|command|c|' main.go
gsed -i -e 's|range Commands|range command.Commands|' main.go
gsed -i -e 's|Commands: Commands|Commands: command.Commands|' main.go
gsed -i -e 's|base\.BoolValue|BoolValue|' command/operator_autopilot_set.go
gsed -i -e 's|base\.DurationValue|DurationValue|' command/operator_autopilot_set.go
gsed -i -e 's|base\.StringValue|StringValue|' command/operator_autopilot_set.go
gsed -i -e 's|base\.UintValue|UintValue|' command/operator_autopilot_set.go
gsed -i -e 's|\bCommand\b|BaseCommand|' command/base.go
gsed -i -e 's|BaseCommand Options|Command Options|' command/base.go
gsed -i -e 's|base.Command|BaseCommand|' command/*.go
gsed -i -e 's|c\.Command|c.BaseCommand|g' command/*.go
gsed -i -e 's|\tCommand:|\tBaseCommand:|' command/*_test.go
gsed -i -e 's|base\.||' command/*_test.go
gsed -i -e 's|\bCommand\b|AgentCommand|' command/agent{,_test}.go
gsed -i -e 's|cmd.AgentCommand|cmd.BaseCommand|' command/agent.go
gsed -i -e 's|cli.AgentCommand = new(Command)|cli.Command = new(AgentCommand)|' command/agent_test.go
gsed -i -e 's|exec.AgentCommand|exec.Command|' command/agent_test.go
gsed -i -e 's|exec.BaseCommand|exec.Command|' command/agent_test.go
gsed -i -e 's|NewTestAgent|agent.NewTestAgent|' command/agent_test.go
gsed -i -e 's|= TestConfig|= agent.TestConfig|' command/agent_test.go
gsed -i -e 's|: RetryJoin|: agent.RetryJoin|' command/agent_test.go
gsed -i -e 's|\.\./\.\./|../|' command/config_util_test.go
gsed -i -e 's|\bverifyUniqueListeners|VerifyUniqueListeners|' agent/config{,_test}.go command/agent.go
gsed -i -e 's|\bserfLANKeyring\b|SerfLANKeyring|g' agent/{agent,keyring,testagent}.go command/agent.go
gsed -i -e 's|\bserfWANKeyring\b|SerfWANKeyring|g' agent/{agent,keyring,testagent}.go command/agent.go
gsed -i -e 's|\bNewAgent\b|agent.New|g' command/agent{,_test}.go
gsed -i -e 's|\bNewAgent|New|' agent/{acl_test,agent,testagent}.go
gsed -i -e 's|\bAgent\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bBool\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bConfig\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bDefaultConfig\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bDevConfig\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bMergeConfig\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bReadConfigPaths\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bParseMetaPair\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bSerfLANKeyring\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bSerfWANKeyring\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|circonus\.agent|circonus|g' command/agent{,_test}.go
gsed -i -e 's|logger\.agent|logger|g' command/agent{,_test}.go
gsed -i -e 's|metrics\.agent|metrics|g' command/agent{,_test}.go
gsed -i -e 's|// agent.Agent|// agent|' command/agent{,_test}.go
gsed -i -e 's|a\.agent\.Config|a.Config|' command/agent{,_test}.go
gsed -i -e 's|agent\.AppendSliceValue|AppendSliceValue|' command/{configtest,validate}.go
gsed -i -e 's|consul/consul|agent/consul|' GNUmakefile
gsed -i -e 's|\.\./test|../../test|' agent/consul/server_test.go
# fix imports
f=$(grep -rl 'github.com/hashicorp/consul/command/agent' * | grep '\.go')
gsed -i -e 's|github.com/hashicorp/consul/command/agent|github.com/hashicorp/consul/agent|' $f
goimports -w $f
f=$(grep -rl 'github.com/hashicorp/consul/consul' * | grep '\.go')
gsed -i -e 's|github.com/hashicorp/consul/consul|github.com/hashicorp/consul/agent/consul|' $f
goimports -w $f
goimports -w command/*.go main.go
)
2017-06-09 22:28:28 +00:00
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// AgentCommand is a Command implementation that runs a Consul agent.
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2013-12-19 20:18:06 +00:00
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// The command will not end unless a shutdown message is sent on the
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// ShutdownCh. If two messages are sent on the ShutdownCh it will forcibly
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// exit.
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2017-10-17 10:55:04 +00:00
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type cmd struct {
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UI cli.Ui
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flags *flag.FlagSet
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http *flags.HTTPFlags
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2017-10-17 13:44:20 +00:00
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help string
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2017-10-17 10:55:04 +00:00
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revision string
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version string
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versionPrerelease string
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versionHuman string
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shutdownCh <-chan struct{}
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2020-12-21 18:25:32 +00:00
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configLoadOpts config.LoadOpts
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2020-01-28 23:50:41 +00:00
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logger hclog.InterceptLogger
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}
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2017-10-17 10:55:04 +00:00
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func (c *cmd) Run(args []string) int {
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code := c.run(args)
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if c.logger != nil {
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2020-01-28 23:50:41 +00:00
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c.logger.Info("Exit code", "code", code)
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2017-10-17 10:55:04 +00:00
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}
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return code
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}
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2017-05-10 15:45:17 +00:00
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2014-09-02 21:23:43 +00:00
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// checkpointResults is used to handler periodic results from our update checker
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2017-10-17 10:55:04 +00:00
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func (c *cmd) checkpointResults(results *checkpoint.CheckResponse, err error) {
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2014-09-02 21:23:43 +00:00
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if err != nil {
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2020-01-28 23:50:41 +00:00
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c.logger.Error("Failed to check for updates", "error", err)
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2014-09-02 21:23:43 +00:00
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return
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}
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if results.Outdated {
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2020-03-17 14:53:15 +00:00
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c.logger.Info("Newer Consul version available", "new_version", results.CurrentVersion, "current_version", c.version)
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2014-09-02 21:23:43 +00:00
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}
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for _, alert := range results.Alerts {
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switch alert.Level {
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case "info":
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2020-01-28 23:50:41 +00:00
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c.logger.Info("Bulletin", "alert_level", alert.Level, "alert_message", alert.Message, "alert_URL", alert.URL)
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2014-09-02 21:23:43 +00:00
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default:
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2020-01-28 23:50:41 +00:00
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c.logger.Error("Bulletin", "alert_level", alert.Level, "alert_message", alert.Message, "alert_URL", alert.URL)
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2014-09-02 21:23:43 +00:00
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}
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}
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}
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2017-10-17 10:55:04 +00:00
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func (c *cmd) startupUpdateCheck(config *config.RuntimeConfig) {
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2017-06-02 13:29:40 +00:00
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version := config.Version
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if config.VersionPrerelease != "" {
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version += fmt.Sprintf("-%s", config.VersionPrerelease)
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}
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updateParams := &checkpoint.CheckParams{
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Product: "consul",
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Version: version,
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}
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if !config.DisableAnonymousSignature {
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updateParams.SignatureFile = filepath.Join(config.DataDir, "checkpoint-signature")
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}
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// Schedule a periodic check with expected interval of 24 hours
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2017-10-17 10:55:04 +00:00
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checkpoint.CheckInterval(updateParams, 24*time.Hour, c.checkpointResults)
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2017-06-02 13:29:40 +00:00
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// Do an immediate check within the next 30 seconds
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go func() {
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time.Sleep(lib.RandomStagger(30 * time.Second))
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2017-10-17 10:55:04 +00:00
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c.checkpointResults(checkpoint.Check(updateParams))
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2017-06-02 13:29:40 +00:00
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}()
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}
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2014-04-11 23:59:16 +00:00
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// startupJoin is invoked to handle any joins specified to take place at start time
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2017-10-17 10:55:04 +00:00
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func (c *cmd) startupJoin(agent *agent.Agent, cfg *config.RuntimeConfig) error {
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2017-09-25 18:40:42 +00:00
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if len(cfg.StartJoinAddrsLAN) == 0 {
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2014-04-11 23:59:16 +00:00
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return nil
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}
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2017-10-17 10:55:04 +00:00
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c.UI.Output("Joining cluster...")
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2017-09-25 18:40:42 +00:00
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n, err := agent.JoinLAN(cfg.StartJoinAddrsLAN)
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2014-04-11 23:59:16 +00:00
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if err != nil {
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return err
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}
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2020-01-28 23:50:41 +00:00
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c.logger.Info("Join completed. Initial agents synced with", "agent_count", n)
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2014-04-11 23:59:16 +00:00
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return nil
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}
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2014-11-17 22:14:59 +00:00
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// startupJoinWan is invoked to handle any joins -wan specified to take place at start time
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2017-10-17 10:55:04 +00:00
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func (c *cmd) startupJoinWan(agent *agent.Agent, cfg *config.RuntimeConfig) error {
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2017-09-25 18:40:42 +00:00
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if len(cfg.StartJoinAddrsWAN) == 0 {
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2014-11-14 15:02:42 +00:00
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return nil
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}
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2017-10-17 10:55:04 +00:00
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c.UI.Output("Joining -wan cluster...")
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2017-09-25 18:40:42 +00:00
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n, err := agent.JoinWAN(cfg.StartJoinAddrsWAN)
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2014-11-14 15:02:42 +00:00
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if err != nil {
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return err
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}
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2020-01-28 23:50:41 +00:00
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c.logger.Info("Join -wan completed. Initial agents synced with", "agent_count", n)
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2014-11-14 15:02:42 +00:00
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
2017-10-17 10:55:04 +00:00
|
|
|
func (c *cmd) run(args []string) int {
|
2018-05-31 23:59:51 +00:00
|
|
|
if err := c.flags.Parse(args); err != nil {
|
|
|
|
if !strings.Contains(err.Error(), "help requested") {
|
|
|
|
c.UI.Error(fmt.Sprintf("error parsing flags: %v", err))
|
|
|
|
}
|
|
|
|
return 1
|
|
|
|
}
|
2020-05-01 22:17:28 +00:00
|
|
|
if len(c.flags.Args()) > 0 {
|
|
|
|
c.UI.Error(fmt.Sprintf("Unexpected extra arguments: %v", c.flags.Args()))
|
|
|
|
return 1
|
|
|
|
}
|
|
|
|
|
2020-08-08 01:08:43 +00:00
|
|
|
logGate := &logging.GatedWriter{Writer: &cli.UiWriter{Ui: c.UI}}
|
2020-12-21 18:25:32 +00:00
|
|
|
loader := func(source config.Source) (config.LoadResult, error) {
|
|
|
|
c.configLoadOpts.DefaultConfig = source
|
|
|
|
return config.Load(c.configLoadOpts)
|
2020-08-08 01:08:43 +00:00
|
|
|
}
|
|
|
|
bd, err := agent.NewBaseDeps(loader, logGate)
|
|
|
|
if err != nil {
|
|
|
|
c.UI.Error(err.Error())
|
|
|
|
return 1
|
2016-11-04 04:14:56 +00:00
|
|
|
}
|
2020-06-10 20:47:35 +00:00
|
|
|
|
2020-08-08 01:08:43 +00:00
|
|
|
c.logger = bd.Logger
|
|
|
|
agent, err := agent.New(bd)
|
2020-06-10 20:47:35 +00:00
|
|
|
if err != nil {
|
|
|
|
c.UI.Error(err.Error())
|
2013-12-21 00:39:32 +00:00
|
|
|
return 1
|
|
|
|
}
|
2020-01-28 23:50:41 +00:00
|
|
|
|
2020-08-08 01:08:43 +00:00
|
|
|
config := bd.RuntimeConfig
|
2020-01-28 23:50:41 +00:00
|
|
|
|
2020-08-08 01:08:43 +00:00
|
|
|
// Setup gate to check if we should output CLI information
|
2020-01-28 23:50:41 +00:00
|
|
|
cli := GatedUi{
|
2020-08-19 17:17:05 +00:00
|
|
|
JSONoutput: config.Logging.LogJSON,
|
2020-01-28 23:50:41 +00:00
|
|
|
ui: c.UI,
|
|
|
|
}
|
2013-12-21 00:39:32 +00:00
|
|
|
|
|
|
|
// Create the agent
|
2020-01-28 23:50:41 +00:00
|
|
|
cli.output("Starting Consul agent...")
|
2017-06-02 13:35:06 +00:00
|
|
|
|
2019-06-27 20:22:07 +00:00
|
|
|
segment := config.SegmentName
|
|
|
|
if config.ServerMode {
|
|
|
|
segment = "<all>"
|
|
|
|
}
|
2020-01-28 23:50:41 +00:00
|
|
|
cli.info(fmt.Sprintf(" Version: '%s'", c.versionHuman))
|
|
|
|
cli.info(fmt.Sprintf(" Node ID: '%s'", config.NodeID))
|
|
|
|
cli.info(fmt.Sprintf(" Node name: '%s'", config.NodeName))
|
|
|
|
cli.info(fmt.Sprintf(" Datacenter: '%s' (Segment: '%s')", config.Datacenter, segment))
|
|
|
|
cli.info(fmt.Sprintf(" Server: %v (Bootstrap: %v)", config.ServerMode, config.Bootstrap))
|
|
|
|
cli.info(fmt.Sprintf(" Client Addr: %v (HTTP: %d, HTTPS: %d, gRPC: %d, DNS: %d)", config.ClientAddrs,
|
2019-06-27 20:22:07 +00:00
|
|
|
config.HTTPPort, config.HTTPSPort, config.GRPCPort, config.DNSPort))
|
2020-01-28 23:50:41 +00:00
|
|
|
cli.info(fmt.Sprintf(" Cluster Addr: %v (LAN: %d, WAN: %d)", config.AdvertiseAddrLAN,
|
2019-06-27 20:22:07 +00:00
|
|
|
config.SerfPortLAN, config.SerfPortWAN))
|
2020-01-28 23:50:41 +00:00
|
|
|
cli.info(fmt.Sprintf(" Encrypt: Gossip: %v, TLS-Outgoing: %v, TLS-Incoming: %v, Auto-Encrypt-TLS: %t",
|
2019-06-27 22:57:29 +00:00
|
|
|
config.EncryptKey != "", config.VerifyOutgoing, config.VerifyIncoming, config.AutoEncryptTLS || config.AutoEncryptAllowTLS))
|
2019-06-27 20:22:07 +00:00
|
|
|
// Enable log streaming
|
2020-01-28 23:50:41 +00:00
|
|
|
cli.output("")
|
|
|
|
cli.output("Log data will now stream in as it occurs:\n")
|
2019-06-27 20:22:07 +00:00
|
|
|
logGate.Flush()
|
|
|
|
|
|
|
|
// wait for signal
|
|
|
|
signalCh := make(chan os.Signal, 10)
|
|
|
|
signal.Notify(signalCh, os.Interrupt, syscall.SIGTERM, syscall.SIGHUP, syscall.SIGPIPE)
|
|
|
|
|
2020-06-19 19:16:00 +00:00
|
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
|
|
|
2019-06-27 20:22:07 +00:00
|
|
|
go func() {
|
|
|
|
for {
|
|
|
|
var sig os.Signal
|
|
|
|
select {
|
|
|
|
case s := <-signalCh:
|
|
|
|
sig = s
|
2020-06-19 19:16:00 +00:00
|
|
|
case <-ctx.Done():
|
2019-06-27 20:22:07 +00:00
|
|
|
return
|
|
|
|
}
|
|
|
|
|
|
|
|
switch sig {
|
|
|
|
case syscall.SIGPIPE:
|
|
|
|
continue
|
|
|
|
|
|
|
|
case syscall.SIGHUP:
|
|
|
|
err := fmt.Errorf("cannot reload before agent started")
|
2020-01-28 23:50:41 +00:00
|
|
|
c.logger.Error("Caught", "signal", sig, "error", err)
|
2019-06-27 20:22:07 +00:00
|
|
|
|
|
|
|
default:
|
2020-01-28 23:50:41 +00:00
|
|
|
c.logger.Info("Caught", "signal", sig)
|
2020-06-19 19:16:00 +00:00
|
|
|
cancel()
|
2019-06-27 20:22:07 +00:00
|
|
|
return
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}()
|
|
|
|
|
2020-06-19 19:16:00 +00:00
|
|
|
err = agent.Start(ctx)
|
2019-06-27 20:22:07 +00:00
|
|
|
signal.Stop(signalCh)
|
2020-06-19 19:16:00 +00:00
|
|
|
cancel()
|
|
|
|
|
2019-06-27 20:22:07 +00:00
|
|
|
if err != nil {
|
2020-01-28 23:50:41 +00:00
|
|
|
c.logger.Error("Error starting agent", "error", err)
|
2013-12-20 01:14:46 +00:00
|
|
|
return 1
|
|
|
|
}
|
2017-06-20 07:29:20 +00:00
|
|
|
|
|
|
|
// shutdown agent before endpoints
|
|
|
|
defer agent.ShutdownEndpoints()
|
|
|
|
defer agent.ShutdownAgent()
|
2017-05-19 09:53:41 +00:00
|
|
|
|
2019-05-07 15:15:34 +00:00
|
|
|
if !config.DisableUpdateCheck && !config.DevMode {
|
2017-10-17 10:55:04 +00:00
|
|
|
c.startupUpdateCheck(config)
|
2013-12-23 19:38:51 +00:00
|
|
|
}
|
2015-08-25 23:40:55 +00:00
|
|
|
|
2017-10-17 10:55:04 +00:00
|
|
|
if err := c.startupJoin(agent, config); err != nil {
|
2020-01-28 23:50:41 +00:00
|
|
|
c.logger.Error((err.Error()))
|
2014-04-11 23:59:16 +00:00
|
|
|
return 1
|
|
|
|
}
|
|
|
|
|
2017-10-17 10:55:04 +00:00
|
|
|
if err := c.startupJoinWan(agent, config); err != nil {
|
2020-01-28 23:50:41 +00:00
|
|
|
c.logger.Error((err.Error()))
|
2014-11-14 15:02:42 +00:00
|
|
|
return 1
|
|
|
|
}
|
|
|
|
|
2014-01-16 01:14:50 +00:00
|
|
|
// Let the agent know we've finished registration
|
2017-06-02 10:17:55 +00:00
|
|
|
agent.StartSync()
|
2017-05-22 11:13:44 +00:00
|
|
|
|
2020-01-28 23:50:41 +00:00
|
|
|
cli.output("Consul agent running!")
|
2013-12-21 00:39:32 +00:00
|
|
|
|
2017-06-02 13:35:06 +00:00
|
|
|
// wait for signal
|
2019-06-27 20:22:07 +00:00
|
|
|
signalCh = make(chan os.Signal, 10)
|
2016-11-30 17:42:10 +00:00
|
|
|
signal.Notify(signalCh, os.Interrupt, syscall.SIGTERM, syscall.SIGHUP, syscall.SIGPIPE)
|
2013-12-21 00:39:32 +00:00
|
|
|
|
2017-06-02 13:04:34 +00:00
|
|
|
for {
|
|
|
|
var sig os.Signal
|
|
|
|
select {
|
|
|
|
case s := <-signalCh:
|
|
|
|
sig = s
|
2018-06-20 18:30:17 +00:00
|
|
|
case <-service_os.Shutdown_Channel():
|
|
|
|
sig = os.Interrupt
|
2017-10-17 10:55:04 +00:00
|
|
|
case <-c.shutdownCh:
|
2017-06-02 13:04:34 +00:00
|
|
|
sig = os.Interrupt
|
|
|
|
case err := <-agent.RetryJoinCh():
|
2020-01-28 23:50:41 +00:00
|
|
|
c.logger.Error("Retry join failed", "error", err)
|
2017-06-02 13:04:34 +00:00
|
|
|
return 1
|
2020-07-02 17:31:47 +00:00
|
|
|
case <-agent.Failed():
|
|
|
|
// The deferred Shutdown method will log the appropriate error
|
|
|
|
return 1
|
2017-06-02 13:04:34 +00:00
|
|
|
case <-agent.ShutdownCh():
|
pkg refactor
command/agent/* -> agent/*
command/consul/* -> agent/consul/*
command/agent/command{,_test}.go -> command/agent{,_test}.go
command/base/command.go -> command/base.go
command/base/* -> command/*
commands.go -> command/commands.go
The script which did the refactor is:
(
cd $GOPATH/src/github.com/hashicorp/consul
git mv command/agent/command.go command/agent.go
git mv command/agent/command_test.go command/agent_test.go
git mv command/agent/flag_slice_value{,_test}.go command/
git mv command/agent .
git mv command/base/command.go command/base.go
git mv command/base/config_util{,_test}.go command/
git mv commands.go command/
git mv consul agent
rmdir command/base/
gsed -i -e 's|package agent|package command|' command/agent{,_test}.go
gsed -i -e 's|package agent|package command|' command/flag_slice_value{,_test}.go
gsed -i -e 's|package base|package command|' command/base.go command/config_util{,_test}.go
gsed -i -e 's|package main|package command|' command/commands.go
gsed -i -e 's|base.Command|BaseCommand|' command/commands.go
gsed -i -e 's|agent.Command|AgentCommand|' command/commands.go
gsed -i -e 's|\tCommand:|\tBaseCommand:|' command/commands.go
gsed -i -e 's|base\.||' command/commands.go
gsed -i -e 's|command\.||' command/commands.go
gsed -i -e 's|command|c|' main.go
gsed -i -e 's|range Commands|range command.Commands|' main.go
gsed -i -e 's|Commands: Commands|Commands: command.Commands|' main.go
gsed -i -e 's|base\.BoolValue|BoolValue|' command/operator_autopilot_set.go
gsed -i -e 's|base\.DurationValue|DurationValue|' command/operator_autopilot_set.go
gsed -i -e 's|base\.StringValue|StringValue|' command/operator_autopilot_set.go
gsed -i -e 's|base\.UintValue|UintValue|' command/operator_autopilot_set.go
gsed -i -e 's|\bCommand\b|BaseCommand|' command/base.go
gsed -i -e 's|BaseCommand Options|Command Options|' command/base.go
gsed -i -e 's|base.Command|BaseCommand|' command/*.go
gsed -i -e 's|c\.Command|c.BaseCommand|g' command/*.go
gsed -i -e 's|\tCommand:|\tBaseCommand:|' command/*_test.go
gsed -i -e 's|base\.||' command/*_test.go
gsed -i -e 's|\bCommand\b|AgentCommand|' command/agent{,_test}.go
gsed -i -e 's|cmd.AgentCommand|cmd.BaseCommand|' command/agent.go
gsed -i -e 's|cli.AgentCommand = new(Command)|cli.Command = new(AgentCommand)|' command/agent_test.go
gsed -i -e 's|exec.AgentCommand|exec.Command|' command/agent_test.go
gsed -i -e 's|exec.BaseCommand|exec.Command|' command/agent_test.go
gsed -i -e 's|NewTestAgent|agent.NewTestAgent|' command/agent_test.go
gsed -i -e 's|= TestConfig|= agent.TestConfig|' command/agent_test.go
gsed -i -e 's|: RetryJoin|: agent.RetryJoin|' command/agent_test.go
gsed -i -e 's|\.\./\.\./|../|' command/config_util_test.go
gsed -i -e 's|\bverifyUniqueListeners|VerifyUniqueListeners|' agent/config{,_test}.go command/agent.go
gsed -i -e 's|\bserfLANKeyring\b|SerfLANKeyring|g' agent/{agent,keyring,testagent}.go command/agent.go
gsed -i -e 's|\bserfWANKeyring\b|SerfWANKeyring|g' agent/{agent,keyring,testagent}.go command/agent.go
gsed -i -e 's|\bNewAgent\b|agent.New|g' command/agent{,_test}.go
gsed -i -e 's|\bNewAgent|New|' agent/{acl_test,agent,testagent}.go
gsed -i -e 's|\bAgent\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bBool\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bConfig\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bDefaultConfig\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bDevConfig\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bMergeConfig\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bReadConfigPaths\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bParseMetaPair\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bSerfLANKeyring\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|\bSerfWANKeyring\b|agent.&|g' command/agent{,_test}.go
gsed -i -e 's|circonus\.agent|circonus|g' command/agent{,_test}.go
gsed -i -e 's|logger\.agent|logger|g' command/agent{,_test}.go
gsed -i -e 's|metrics\.agent|metrics|g' command/agent{,_test}.go
gsed -i -e 's|// agent.Agent|// agent|' command/agent{,_test}.go
gsed -i -e 's|a\.agent\.Config|a.Config|' command/agent{,_test}.go
gsed -i -e 's|agent\.AppendSliceValue|AppendSliceValue|' command/{configtest,validate}.go
gsed -i -e 's|consul/consul|agent/consul|' GNUmakefile
gsed -i -e 's|\.\./test|../../test|' agent/consul/server_test.go
# fix imports
f=$(grep -rl 'github.com/hashicorp/consul/command/agent' * | grep '\.go')
gsed -i -e 's|github.com/hashicorp/consul/command/agent|github.com/hashicorp/consul/agent|' $f
goimports -w $f
f=$(grep -rl 'github.com/hashicorp/consul/consul' * | grep '\.go')
gsed -i -e 's|github.com/hashicorp/consul/consul|github.com/hashicorp/consul/agent/consul|' $f
goimports -w $f
goimports -w command/*.go main.go
)
2017-06-09 22:28:28 +00:00
|
|
|
// agent is already down!
|
2017-06-02 13:04:34 +00:00
|
|
|
return 0
|
|
|
|
}
|
2013-12-21 00:39:32 +00:00
|
|
|
|
2017-06-02 13:04:34 +00:00
|
|
|
switch sig {
|
|
|
|
case syscall.SIGPIPE:
|
|
|
|
continue
|
2016-11-30 17:42:10 +00:00
|
|
|
|
2017-06-02 13:04:34 +00:00
|
|
|
case syscall.SIGHUP:
|
2020-01-28 23:50:41 +00:00
|
|
|
c.logger.Info("Caught", "signal", sig)
|
2017-03-29 06:46:58 +00:00
|
|
|
|
2020-06-10 20:47:35 +00:00
|
|
|
err := agent.ReloadConfig()
|
2017-06-02 13:04:34 +00:00
|
|
|
if err != nil {
|
2020-01-28 23:50:41 +00:00
|
|
|
c.logger.Error("Reload config failed", "error", err)
|
2017-06-02 13:04:34 +00:00
|
|
|
}
|
2020-06-10 20:47:35 +00:00
|
|
|
config = agent.GetConfig()
|
2017-06-02 13:04:34 +00:00
|
|
|
default:
|
2020-01-28 23:50:41 +00:00
|
|
|
c.logger.Info("Caught", "signal", sig)
|
2013-12-21 00:39:32 +00:00
|
|
|
|
2017-09-25 18:40:42 +00:00
|
|
|
graceful := (sig == os.Interrupt && !(config.SkipLeaveOnInt)) || (sig == syscall.SIGTERM && (config.LeaveOnTerm))
|
2017-06-02 13:04:34 +00:00
|
|
|
if !graceful {
|
2020-01-28 23:50:41 +00:00
|
|
|
c.logger.Info("Graceful shutdown disabled. Exiting")
|
2017-06-02 13:04:34 +00:00
|
|
|
return 1
|
|
|
|
}
|
2013-12-21 00:39:32 +00:00
|
|
|
|
2020-01-28 23:50:41 +00:00
|
|
|
c.logger.Info("Gracefully shutting down agent...")
|
2017-06-02 13:04:34 +00:00
|
|
|
gracefulCh := make(chan struct{})
|
|
|
|
go func() {
|
|
|
|
if err := agent.Leave(); err != nil {
|
2020-01-28 23:50:41 +00:00
|
|
|
c.logger.Error("Error on leave", "error", err)
|
2017-06-02 13:04:34 +00:00
|
|
|
return
|
|
|
|
}
|
|
|
|
close(gracefulCh)
|
|
|
|
}()
|
|
|
|
|
2017-06-07 11:12:34 +00:00
|
|
|
gracefulTimeout := 15 * time.Second
|
2017-06-02 13:04:34 +00:00
|
|
|
select {
|
|
|
|
case <-signalCh:
|
2020-01-28 23:50:41 +00:00
|
|
|
c.logger.Info("Caught second signal, Exiting", "signal", sig)
|
2017-06-02 13:04:34 +00:00
|
|
|
return 1
|
|
|
|
case <-time.After(gracefulTimeout):
|
2020-01-28 23:50:41 +00:00
|
|
|
c.logger.Info("Timeout on graceful leave. Exiting")
|
2017-06-02 13:04:34 +00:00
|
|
|
return 1
|
|
|
|
case <-gracefulCh:
|
2020-01-28 23:50:41 +00:00
|
|
|
c.logger.Info("Graceful exit completed")
|
2017-06-02 13:04:34 +00:00
|
|
|
return 0
|
|
|
|
}
|
2013-12-21 00:39:32 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-08-08 01:08:43 +00:00
|
|
|
type GatedUi struct {
|
|
|
|
JSONoutput bool
|
|
|
|
ui cli.Ui
|
|
|
|
}
|
|
|
|
|
2020-01-28 23:50:41 +00:00
|
|
|
func (g *GatedUi) output(s string) {
|
|
|
|
if !g.JSONoutput {
|
|
|
|
g.ui.Output(s)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
func (g *GatedUi) info(s string) {
|
|
|
|
if !g.JSONoutput {
|
|
|
|
g.ui.Info(s)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-10-17 13:44:20 +00:00
|
|
|
func (c *cmd) Synopsis() string {
|
|
|
|
return synopsis
|
|
|
|
}
|
|
|
|
|
|
|
|
func (c *cmd) Help() string {
|
|
|
|
return c.help
|
|
|
|
}
|
|
|
|
|
|
|
|
const synopsis = "Runs a Consul agent"
|
|
|
|
const help = `
|
|
|
|
Usage: consul agent [options]
|
2013-12-19 20:18:06 +00:00
|
|
|
|
|
|
|
Starts the Consul agent and runs until an interrupt is received. The
|
2017-10-17 13:44:20 +00:00
|
|
|
agent represents a single node in a cluster.
|
|
|
|
`
|