[tmpnet] Ensure all node runtime methods accept a context

tests/fixture/e2e/env.go

@@ -127,7 +127,7 @@ func NewTestEnvironment(tc tests.TestContext, flagVars *FlagVars, desiredNetwork
 
 		if len(networkDir) > 0 {
 			var err error
-			network, err = tmpnet.ReadNetwork(tc.Log(), networkDir)
+			network, err = tmpnet.ReadNetwork(tc.DefaultContext(), tc.Log(), networkDir)
 			require.NoError(err)
 			tc.Log().Info("loaded a network",
 				zap.String("networkDir", networkDir),
@@ -223,7 +223,7 @@ func (te *TestEnvironment) GetRandomNodeURI() tmpnet.NodeURI {
 // Retrieve the network to target for testing.
 func (te *TestEnvironment) GetNetwork() *tmpnet.Network {
 	tc := te.testContext
-	network, err := tmpnet.ReadNetwork(tc.Log(), te.NetworkDir)
+	network, err := tmpnet.ReadNetwork(tc.DefaultContext(), tc.Log(), te.NetworkDir)
 	require.NoError(tc, err)
 	return network
 }
@@ -238,7 +238,7 @@ func (te *TestEnvironment) StartPrivateNetwork(network *tmpnet.Network) {
 	tc := te.testContext
 	require := require.New(tc)
 	// Use the same configuration as the shared network
-	sharedNetwork, err := tmpnet.ReadNetwork(tc.Log(), te.NetworkDir)
+	sharedNetwork, err := tmpnet.ReadNetwork(tc.DefaultContext(), tc.Log(), te.NetworkDir)
 	require.NoError(err)
 	network.DefaultRuntimeConfig = sharedNetwork.DefaultRuntimeConfig
 

tests/fixture/tmpnet/network.go

@@ -175,7 +175,7 @@ func BootstrapNewNetwork(
 
 // Stops the nodes of the network configured in the provided directory.
 func StopNetwork(ctx context.Context, log logging.Logger, dir string) error {
-	network, err := ReadNetwork(log, dir)
+	network, err := ReadNetwork(ctx, log, dir)
 	if err != nil {
 		return err
 	}
@@ -184,15 +184,15 @@ func StopNetwork(ctx context.Context, log logging.Logger, dir string) error {
 
 // Restarts the nodes of the network configured in the provided directory.
 func RestartNetwork(ctx context.Context, log logging.Logger, dir string) error {
-	network, err := ReadNetwork(log, dir)
+	network, err := ReadNetwork(ctx, log, dir)
 	if err != nil {
 		return err
 	}
 	return network.Restart(ctx)
 }
 
 // Reads a network from the provided directory.
-func ReadNetwork(log logging.Logger, dir string) (*Network, error) {
+func ReadNetwork(ctx context.Context, log logging.Logger, dir string) (*Network, error) {
 	canonicalDir, err := toCanonicalDir(dir)
 	if err != nil {
 		return nil, err
@@ -201,7 +201,7 @@ func ReadNetwork(log logging.Logger, dir string) (*Network, error) {
 		Dir: canonicalDir,
 		log: log,
 	}
-	if err := network.Read(); err != nil {
+	if err := network.Read(ctx); err != nil {
 		return nil, fmt.Errorf("failed to read network: %w", err)
 	}
 	if network.DefaultFlags == nil {
@@ -475,7 +475,7 @@ func (n *Network) StartNode(ctx context.Context, node *Node) error {
 		return fmt.Errorf("writing node flags: %w", err)
 	}
 
-	if err := node.Start(); err != nil {
+	if err := node.Start(ctx); err != nil {
 		// Attempt to stop an unhealthy node to provide some assurance to the caller
 		// that an error condition will not result in a lingering process.
 		err = errors.Join(err, node.Stop(ctx))
@@ -513,7 +513,7 @@ func (n *Network) RestartNode(ctx context.Context, node *Node) error {
 // Stops all nodes in the network.
 func (n *Network) Stop(ctx context.Context) error {
 	// Ensure the node state is up-to-date
-	if err := n.readNodes(); err != nil {
+	if err := n.readNodes(ctx); err != nil {
 		return err
 	}
 

tests/fixture/tmpnet/network_config.go

@@ -4,6 +4,7 @@
 package tmpnet
 
 import (
+	"context"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -21,11 +22,11 @@ import (
 var errMissingNetworkDir = errors.New("failed to write network: missing network directory")
 
 // Read network and node configuration from disk.
-func (n *Network) Read() error {
+func (n *Network) Read(ctx context.Context) error {
 	if err := n.readNetwork(); err != nil {
 		return err
 	}
-	if err := n.readNodes(); err != nil {
+	if err := n.readNodes(ctx); err != nil {
 		return err
 	}
 	return n.readSubnets()
@@ -57,7 +58,7 @@ func (n *Network) readNetwork() error {
 }
 
 // Read the nodes associated with the network from disk.
-func (n *Network) readNodes() error {
+func (n *Network) readNodes(ctx context.Context) error {
 	nodes := []*Node{}
 
 	// Node configuration is stored in child directories
@@ -72,7 +73,7 @@ func (n *Network) readNodes() error {
 
 		node := NewNode()
 		dataDir := filepath.Join(n.Dir, entry.Name())
-		err := node.Read(n, dataDir)
+		err := node.Read(ctx, n, dataDir)
 		if errors.Is(err, os.ErrNotExist) {
 			// If no config file exists, assume this is not the path of a node
 			continue

tests/fixture/tmpnet/network_test.go

@@ -4,6 +4,7 @@
 package tmpnet
 
 import (
+	"context"
 	"testing"
 
 	"github.com/stretchr/testify/require"
@@ -16,6 +17,8 @@ func TestNetworkSerialization(t *testing.T) {
 
 	tmpDir := t.TempDir()
 
+	ctx := context.Background()
+
 	network := NewDefaultNetwork("testnet")
 	// Validate round-tripping of primary subnet configuration
 	network.PrimarySubnetConfig = ConfigMap{
@@ -24,9 +27,9 @@ func TestNetworkSerialization(t *testing.T) {
 	require.NoError(network.EnsureDefaultConfig(logging.NoLog{}))
 	require.NoError(network.Create(tmpDir))
 	// Ensure node runtime is initialized
-	require.NoError(network.readNodes())
+	require.NoError(network.readNodes(ctx))
 
-	loadedNetwork, err := ReadNetwork(logging.NoLog{}, network.Dir)
+	loadedNetwork, err := ReadNetwork(ctx, logging.NoLog{}, network.Dir)
 	require.NoError(err)
 	for _, key := range loadedNetwork.PreFundedKeys {
 		// Address() enables comparison with the original network by

tests/fixture/tmpnet/node.go

@@ -36,11 +36,11 @@ var (
 
 // NodeRuntime defines the methods required to support running a node.
 type NodeRuntime interface {
-	readState() error
+	readState(ctx context.Context) error
 	GetLocalURI(ctx context.Context) (string, func(), error)
 	GetLocalStakingAddress(ctx context.Context) (netip.AddrPort, func(), error)
-	InitiateStop() error
-	Start() error
+	Start(ctx context.Context) error
+	InitiateStop(ctx context.Context) error
 	WaitForStopped(ctx context.Context) error
 	IsHealthy(ctx context.Context) (bool, error)
 }
@@ -140,23 +140,23 @@ func (n *Node) IsHealthy(ctx context.Context) (bool, error) {
 	return n.getRuntime().IsHealthy(ctx)
 }
 
-func (n *Node) Start() error {
-	return n.getRuntime().Start()
+func (n *Node) Start(ctx context.Context) error {
+	return n.getRuntime().Start(ctx)
 }
 
 func (n *Node) InitiateStop(ctx context.Context) error {
 	if err := n.SaveMetricsSnapshot(ctx); err != nil {
 		return err
 	}
-	return n.getRuntime().InitiateStop()
+	return n.getRuntime().InitiateStop(ctx)
 }
 
 func (n *Node) WaitForStopped(ctx context.Context) error {
 	return n.getRuntime().WaitForStopped(ctx)
 }
 
-func (n *Node) readState() error {
-	return n.getRuntime().readState()
+func (n *Node) readState(ctx context.Context) error {
+	return n.getRuntime().readState(ctx)
 }
 
 func (n *Node) GetLocalURI(ctx context.Context) (string, func(), error) {

tests/fixture/tmpnet/node_config.go

@@ -4,6 +4,7 @@
 package tmpnet
 
 import (
+	"context"
 	"encoding/json"
 	"fmt"
 	"os"
@@ -70,7 +71,7 @@ func (n *Node) writeConfig() error {
 	return nil
 }
 
-func (n *Node) Read(network *Network, dataDir string) error {
+func (n *Node) Read(ctx context.Context, network *Network, dataDir string) error {
 	n.network = network
 	n.DataDir = dataDir
 
@@ -80,7 +81,7 @@ func (n *Node) Read(network *Network, dataDir string) error {
 	if err := n.EnsureNodeID(); err != nil {
 		return err
 	}
-	return n.readState()
+	return n.readState(ctx)
 }
 
 func (n *Node) Write() error {

tests/fixture/tmpnet/process_runtime.go

@@ -58,7 +58,7 @@ func (p *ProcessRuntime) setProcessContext(processContext node.ProcessContext) {
 	p.node.StakingAddress = processContext.StakingAddress
 }
 
-func (p *ProcessRuntime) readState() error {
+func (p *ProcessRuntime) readState(_ context.Context) error {
 	path := p.getProcessContextPath()
 	bytes, err := os.ReadFile(path)
 	if errors.Is(err, fs.ErrNotExist) {
@@ -81,7 +81,7 @@ func (p *ProcessRuntime) readState() error {
 // its staking port. The network will start faster with this
 // synchronization due to the avoidance of exponential backoff
 // if a node tries to connect to a beacon that is not ready.
-func (p *ProcessRuntime) Start() error {
+func (p *ProcessRuntime) Start(ctx context.Context) error {
 	log := p.node.network.log
 
 	// Avoid attempting to start an already running node.
@@ -122,7 +122,7 @@ func (p *ProcessRuntime) Start() error {
 	// a configuration error preventing startup. Such a log entry will be provided to the
 	// cancelWithCause function so that waitForProcessContext can exit early with an error
 	// that includes the log entry.
-	ctx, cancelWithCause := context.WithCancelCause(context.Background())
+	ctx, cancelWithCause := context.WithCancelCause(ctx)
 	defer cancelWithCause(nil)
 	logPath := p.node.DataDir + "/logs/main.log"
 	go watchLogFileForFatal(ctx, cancelWithCause, log, logPath)
@@ -145,7 +145,7 @@ func (p *ProcessRuntime) Start() error {
 }
 
 // Signals the node process to stop.
-func (p *ProcessRuntime) InitiateStop() error {
+func (p *ProcessRuntime) InitiateStop(_ context.Context) error {
 	proc, err := p.getProcess()
 	if err != nil {
 		return fmt.Errorf("failed to retrieve process to stop: %w", err)
@@ -211,7 +211,7 @@ func (p *ProcessRuntime) waitForProcessContext(ctx context.Context) error {
 	ctx, cancel := context.WithTimeout(ctx, defaultNodeInitTimeout)
 	defer cancel()
 	for len(p.node.URI) == 0 {
-		err := p.readState()
+		err := p.readState(ctx)
 		if err != nil {
 			return fmt.Errorf("failed to read process context for node %q: %w", p.node.NodeID, err)
 		}
@@ -229,9 +229,11 @@ func (p *ProcessRuntime) waitForProcessContext(ctx context.Context) error {
 // process liveness, the node's process context will be refreshed if
 // live or cleared if not running.
 func (p *ProcessRuntime) getProcess() (*os.Process, error) {
+	// This context is not used but a non-nil value must be supplied to satisfy the linter
+	ctx := context.TODO()
 	// Read the process context to ensure freshness. The node may have
 	// stopped or been restarted since last read.
-	if err := p.readState(); err != nil {
+	if err := p.readState(ctx); err != nil {
 		return nil, fmt.Errorf("failed to read process context: %w", err)
 	}