Fix bug where two configurations had been created

* registry.PodmanConfig() new returns a pointer to the source of truth

Signed-off-by: Jhon Honce <jhonce@redhat.com>

8 files changed, 36 insertions, 33 deletions

diff --git a/cmd/podman/common/create.go b/cmd/podman/common/create.go
index a7c8435c9..49a40dfa0 100644
--- a/cmd/podman/common/create.go
+++ b/cmd/podman/common/create.go
@@ -10,7 +10,7 @@ import (
 
 const sizeWithUnitFormat = "(format: `<number>[<unit>]`, where unit = b (bytes), k (kilobytes), m (megabytes), or g (gigabytes))"
 
-var containerConfig = registry.NewPodmanConfig()
+var containerConfig = registry.PodmanConfig()
 
 func GetCreateFlags(cf *ContainerCLIOpts) *pflag.FlagSet {
 	createFlags := pflag.FlagSet{}
diff --git a/cmd/podman/containers/stop.go b/cmd/podman/containers/stop.go
index 1ee9186a7..c1560be08 100644
--- a/cmd/podman/containers/stop.go
+++ b/cmd/podman/containers/stop.go
@@ -45,7 +45,8 @@ func init() {
 	flags.StringArrayVarP(&stopOptions.CIDFiles, "cidfile", "", nil, "Read the container ID from the file")
 	flags.BoolVarP(&stopOptions.Latest, "latest", "l", false, "Act on the latest container podman is aware of")
 	flags.UintVarP(&stopTimeout, "time", "t", defaultContainerConfig.Engine.StopTimeout, "Seconds to wait for stop before killing the container")
-	if registry.PodmanOptions.EngineMode == entities.ABIMode {
+
+	if registry.IsRemote() {
 		_ = flags.MarkHidden("latest")
 		_ = flags.MarkHidden("cidfile")
 		_ = flags.MarkHidden("ignore")
diff --git a/cmd/podman/containers/wait.go b/cmd/podman/containers/wait.go
index 83c164e16..47f28f4c6 100644
--- a/cmd/podman/containers/wait.go
+++ b/cmd/podman/containers/wait.go
@@ -43,7 +43,7 @@ func init() {
 	flags.DurationVarP(&waitOptions.Interval, "interval", "i", time.Duration(250), "Milliseconds to wait before polling for completion")
 	flags.BoolVarP(&waitOptions.Latest, "latest", "l", false, "Act on the latest container podman is aware of")
 	flags.StringVar(&waitCondition, "condition", "stopped", "Condition to wait on")
-	if registry.PodmanOptions.EngineMode == entities.ABIMode {
+	if registry.IsRemote() {
 		// TODO: This is the same as V1.  We could skip creating the flag altogether in V2...
 		_ = flags.MarkHidden("latest")
 	}
diff --git a/cmd/podman/main.go b/cmd/podman/main.go
index 5f7bfe3c9..2d9e45177 100644
--- a/cmd/podman/main.go
+++ b/cmd/podman/main.go
@@ -14,12 +14,6 @@ import (
 	"github.com/containers/storage/pkg/reexec"
 )
 
-func init() {
-	// This is the bootstrap configuration, if user gives
-	// CLI flags parts of this configuration may be overwritten
-	registry.PodmanOptions = registry.NewPodmanConfig()
-}
-
 func main() {
 	if reexec.Init() {
 		// We were invoked with a different argv[0] indicating that we
@@ -27,9 +21,10 @@ func main() {
 		return
 	}
 
+	cfg := registry.PodmanConfig()
 	for _, c := range registry.Commands {
 		for _, m := range c.Mode {
-			if registry.PodmanOptions.EngineMode == m {
+			if cfg.EngineMode == m {
 				parent := rootCmd
 				if c.Parent != nil {
 					parent = c.Parent
diff --git a/cmd/podman/registry/config.go b/cmd/podman/registry/config.go
index 358f9172e..fc6eb538e 100644
--- a/cmd/podman/registry/config.go
+++ b/cmd/podman/registry/config.go
@@ -6,6 +6,7 @@ import (
 	"path/filepath"
 	"runtime"
 	"strings"
+	"sync"
 
 	"github.com/containers/common/pkg/config"
 	"github.com/containers/libpod/pkg/domain/entities"
@@ -19,11 +20,18 @@ const (
 )
 
 var (
-	PodmanOptions entities.PodmanConfig
+	podmanOptions entities.PodmanConfig
+	podmanSync    sync.Once
 )
 
-// NewPodmanConfig creates a PodmanConfig from the environment
-func NewPodmanConfig() entities.PodmanConfig {
+// PodmanConfig returns an entities.PodmanConfig built up from
+// environment and CLI
+func PodmanConfig() *entities.PodmanConfig {
+	podmanSync.Do(newPodmanConfig)
+	return &podmanOptions
+}
+
+func newPodmanConfig() {
 	if err := setXdgDirs(); err != nil {
 		fmt.Fprintf(os.Stderr, err.Error())
 		os.Exit(1)
@@ -63,7 +71,7 @@ func NewPodmanConfig() entities.PodmanConfig {
 		cfg.Network.NetworkConfigDir = ""
 	}
 
-	return entities.PodmanConfig{Config: cfg, EngineMode: mode}
+	podmanOptions = entities.PodmanConfig{Config: cfg, EngineMode: mode}
 }
 
 // SetXdgDirs ensures the XDG_RUNTIME_DIR env and XDG_CONFIG_HOME variables are set.
diff --git a/cmd/podman/registry/registry.go b/cmd/podman/registry/registry.go
index 1c5e5d21b..2e9d59d10 100644
--- a/cmd/podman/registry/registry.go
+++ b/cmd/podman/registry/registry.go
@@ -49,8 +49,8 @@ func ImageEngine() entities.ImageEngine {
 // NewImageEngine is a wrapper for building an ImageEngine to be used for PreRunE functions
 func NewImageEngine(cmd *cobra.Command, args []string) (entities.ImageEngine, error) {
 	if imageEngine == nil {
-		PodmanOptions.FlagSet = cmd.Flags()
-		engine, err := infra.NewImageEngine(PodmanOptions)
+		podmanOptions.FlagSet = cmd.Flags()
+		engine, err := infra.NewImageEngine(&podmanOptions)
 		if err != nil {
 			return nil, err
 		}
@@ -66,8 +66,8 @@ func ContainerEngine() entities.ContainerEngine {
 // NewContainerEngine is a wrapper for building an ContainerEngine to be used for PreRunE functions
 func NewContainerEngine(cmd *cobra.Command, args []string) (entities.ContainerEngine, error) {
 	if containerEngine == nil {
-		PodmanOptions.FlagSet = cmd.Flags()
-		engine, err := infra.NewContainerEngine(PodmanOptions)
+		podmanOptions.FlagSet = cmd.Flags()
+		engine, err := infra.NewContainerEngine(&podmanOptions)
 		if err != nil {
 			return nil, err
 		}
@@ -101,7 +101,7 @@ func Context() context.Context {
 }
 
 func ContextWithOptions(ctx context.Context) context.Context {
-	cliCtx = context.WithValue(ctx, PodmanOptionsKey{}, PodmanOptions)
+	cliCtx = context.WithValue(ctx, PodmanOptionsKey{}, podmanOptions)
 	return cliCtx
 }
 
diff --git a/cmd/podman/registry/remote.go b/cmd/podman/registry/remote.go
index 5378701e7..95870750e 100644
--- a/cmd/podman/registry/remote.go
+++ b/cmd/podman/registry/remote.go
@@ -5,5 +5,5 @@ import (
 )
 
 func IsRemote() bool {
-	return PodmanOptions.EngineMode == entities.TunnelMode
+	return podmanOptions.EngineMode == entities.TunnelMode
 }
diff --git a/cmd/podman/root.go b/cmd/podman/root.go
index 259e10c55..729ca6aa7 100644
--- a/cmd/podman/root.go
+++ b/cmd/podman/root.go
@@ -77,7 +77,7 @@ func init() {
 		syslogHook,
 	)
 
-	rootFlags(registry.PodmanOptions, rootCmd.PersistentFlags())
+	rootFlags(registry.PodmanConfig(), rootCmd.PersistentFlags())
 }
 
 func Execute() {
@@ -98,9 +98,7 @@ func persistentPreRunE(cmd *cobra.Command, args []string) error {
 	// TODO: Remove trace statement in podman V2.1
 	logrus.Debugf("Called %s.PersistentPreRunE()", cmd.Name())
 
-	// Update PodmanOptions now that we "know" more
-	// TODO: pass in path overriding configuration file
-	registry.PodmanOptions = registry.NewPodmanConfig()
+	cfg := registry.PodmanConfig()
 
 	// Prep the engines
 	if _, err := registry.NewImageEngine(cmd, args); err != nil {
@@ -111,10 +109,10 @@ func persistentPreRunE(cmd *cobra.Command, args []string) error {
 	}
 
 	if cmd.Flag("cpu-profile").Changed {
-		f, err := os.Create(registry.PodmanOptions.CpuProfile)
+		f, err := os.Create(cfg.CpuProfile)
 		if err != nil {
 			return errors.Wrapf(err, "unable to create cpu profiling file %s",
-				registry.PodmanOptions.CpuProfile)
+				cfg.CpuProfile)
 		}
 		if err := pprof.StartCPUProfile(f); err != nil {
 			return err
@@ -124,11 +122,11 @@ func persistentPreRunE(cmd *cobra.Command, args []string) error {
 	if cmd.Flag("trace").Changed {
 		tracer, closer := tracing.Init("podman")
 		opentracing.SetGlobalTracer(tracer)
-		registry.PodmanOptions.SpanCloser = closer
+		cfg.SpanCloser = closer
 
-		registry.PodmanOptions.Span = tracer.StartSpan("before-context")
-		registry.PodmanOptions.SpanCtx = opentracing.ContextWithSpan(registry.Context(), registry.PodmanOptions.Span)
-		opentracing.StartSpanFromContext(registry.PodmanOptions.SpanCtx, cmd.Name())
+		cfg.Span = tracer.StartSpan("before-context")
+		cfg.SpanCtx = opentracing.ContextWithSpan(registry.Context(), cfg.Span)
+		opentracing.StartSpanFromContext(cfg.SpanCtx, cmd.Name())
 	}
 
 	// Setup Rootless environment, IFF:
@@ -149,12 +147,13 @@ func persistentPostRunE(cmd *cobra.Command, args []string) error {
 	// TODO: Remove trace statement in podman V2.1
 	logrus.Debugf("Called %s.PersistentPostRunE()", cmd.Name())
 
+	cfg := registry.PodmanConfig()
 	if cmd.Flag("cpu-profile").Changed {
 		pprof.StopCPUProfile()
 	}
 	if cmd.Flag("trace").Changed {
-		registry.PodmanOptions.Span.Finish()
-		registry.PodmanOptions.SpanCloser.Close()
+		cfg.Span.Finish()
+		cfg.SpanCloser.Close()
 	}
 	return nil
 }
@@ -199,7 +198,7 @@ func syslogHook() {
 	}
 }
 
-func rootFlags(opts entities.PodmanConfig, flags *pflag.FlagSet) {
+func rootFlags(opts *entities.PodmanConfig, flags *pflag.FlagSet) {
 	// V2 flags
 	flags.StringVarP(&opts.Uri, "remote", "r", "", "URL to access Podman service")
 	flags.StringSliceVar(&opts.Identities, "identity", []string{}, "path to SSH identity file")