Add FQDNWithContext functions to prevent breaking change

providers/aix/host_aix_ppc64.go

@@ -129,8 +129,12 @@ func (*host) Memory() (*types.HostMemoryInfo, error) {
 	return &mem, nil
 }
 
-func (h *host) FQDN(ctx context.Context) (string, error) {
-	return shared.FQDN(ctx)
+func (h *host) FQDNWithContext(ctx context.Context) (string, error) {
+	return shared.FQDNWithContext(ctx)
+}
+
+func (h *host) FQDN() (string, error) {
+	return h.FQDNWithContext(context.Background())
 }
 
 func newHost() (*host, error) {

providers/darwin/host_darwin.go

@@ -140,8 +140,12 @@ func (h *host) Memory() (*types.HostMemoryInfo, error) {
 	return &mem, nil
 }
 
-func (h *host) FQDN(ctx context.Context) (string, error) {
-	return shared.FQDN(ctx)
+func (h *host) FQDNWithContext(ctx context.Context) (string, error) {
+	return shared.FQDNWithContext(ctx)
+}
+
+func (h *host) FQDN() (string, error) {
+	return h.FQDNWithContext(context.Background())
 }
 
 func (h *host) LoadAverage() (*types.LoadAverageInfo, error) {

providers/linux/host_linux.go

@@ -74,8 +74,12 @@ func (h *host) Memory() (*types.HostMemoryInfo, error) {
 	return parseMemInfo(content)
 }
 
-func (h *host) FQDN(ctx context.Context) (string, error) {
-	return shared.FQDN(ctx)
+func (h *host) FQDNWithContext(ctx context.Context) (string, error) {
+	return shared.FQDNWithContext(ctx)
+}
+
+func (h *host) FQDN() (string, error) {
+	return h.FQDNWithContext(context.Background())
 }
 
 // VMStat reports data from /proc/vmstat on linux.

providers/shared/fqdn.go

@@ -27,7 +27,7 @@ import (
 	"strings"
 )
 
-// FQDN attempts to lookup the host's fully-qualified domain name and returns it.
+// FQDNWithContext attempts to lookup the host's fully-qualified domain name and returns it.
 // It does so using the following algorithm:
 //
 //  1. It gets the hostname from the OS. If this step fails, it returns an error.
@@ -41,7 +41,7 @@ import (
 //
 //  4. If steps 2 and 3 both fail, an empty string is returned as the FQDN along with
 //     errors from those steps.
-func FQDN(ctx context.Context) (string, error) {
+func FQDNWithContext(ctx context.Context) (string, error) {
 	hostname, err := os.Hostname()
 	if err != nil {
 		return "", fmt.Errorf("could not get hostname to look for FQDN: %w", err)
@@ -50,6 +50,11 @@ func FQDN(ctx context.Context) (string, error) {
 	return fqdn(ctx, hostname)
 }
 
+// FQDN just calls FQDNWithContext with a background context.
+func FQDN() (string, error) {
+	return FQDNWithContext(context.Background())
+}
+
 func fqdn(ctx context.Context, hostname string) (string, error) {
 	var errs error
 	cname, err := net.DefaultResolver.LookupCNAME(ctx, hostname)

providers/windows/host_windows.go

@@ -85,7 +85,7 @@ func (h *host) Memory() (*types.HostMemoryInfo, error) {
 	}, nil
 }
 
-func (h *host) FQDN(_ context.Context) (string, error) {
+func (h *host) FQDNWithContext(_ context.Context) (string, error) {
 	fqdn, err := getComputerNameEx(stdwindows.ComputerNamePhysicalDnsFullyQualified)
 	if err != nil {
 		return "", fmt.Errorf("could not get windows FQDN: %s", err)
@@ -94,6 +94,10 @@ func (h *host) FQDN(_ context.Context) (string, error) {
 	return strings.ToLower(strings.TrimSuffix(fqdn, ".")), nil
 }
 
+func (h *host) FQDN() (string, error) {
+	return h.FQDNWithContext(context.Background())
+}
+
 func newHost() (*host, error) {
 	h := &host{}
 	r := &reader{}

types/host.go

@@ -30,8 +30,12 @@ type Host interface {
 	Info() HostInfo
 	Memory() (*HostMemoryInfo, error)
 
-	// FQDN returns the fully-qualified domain name of the host, lowercased.
-	FQDN(ctx context.Context) (string, error)
+	// FQDNWithContext returns the fully-qualified domain name of the host, lowercased.
+	FQDNWithContext(ctx context.Context) (string, error)
+
+	// FQDN calls FQDNWithContext with a background context.
+	// Deprecated: Use FQDNWithContext instead.
+	FQDN() (string, error)
 }
 
 // NetworkCounters represents network stats from /proc/net