treewide: introduce osbase package and move things around

All except localregistry moved from metropolis/pkg to osbase,
localregistry moved to metropolis/test as its only used there anyway.

Change-Id: If1a4bf377364bef0ac23169e1b90379c71b06d72
Reviewed-on: https://review.monogon.dev/c/monogon/+/3079
Tested-by: Jenkins CI
Reviewed-by: Serge Bazanski <serge@monogon.tech>
diff --git a/metropolis/node/core/consensus/BUILD.bazel b/metropolis/node/core/consensus/BUILD.bazel
index 359b6dc..eeb8d3b 100644
--- a/metropolis/node/core/consensus/BUILD.bazel
+++ b/metropolis/node/core/consensus/BUILD.bazel
@@ -16,13 +16,13 @@
         "//metropolis/node/core/consensus/client",
         "//metropolis/node/core/identity",
         "//metropolis/node/core/localstorage",
-        "//metropolis/pkg/event",
-        "//metropolis/pkg/event/memory",
-        "//metropolis/pkg/logbuffer",
-        "//metropolis/pkg/logtree",
-        "//metropolis/pkg/logtree/unraw",
-        "//metropolis/pkg/pki",
-        "//metropolis/pkg/supervisor",
+        "//osbase/event",
+        "//osbase/event/memory",
+        "//osbase/logbuffer",
+        "//osbase/logtree",
+        "//osbase/logtree/unraw",
+        "//osbase/pki",
+        "//osbase/supervisor",
         "@io_etcd_go_etcd_client_v3//:client",
         "@io_etcd_go_etcd_server_v3//embed",
     ],
@@ -45,10 +45,10 @@
     deps = [
         "//metropolis/node/core/localstorage",
         "//metropolis/node/core/localstorage/declarative",
-        "//metropolis/pkg/logbuffer",
-        "//metropolis/pkg/logtree",
-        "//metropolis/pkg/supervisor",
         "//metropolis/test/util",
+        "//osbase/logbuffer",
+        "//osbase/logtree",
+        "//osbase/supervisor",
         "@com_github_google_go_cmp//cmp",
     ],
 )
diff --git a/metropolis/node/core/consensus/configuration.go b/metropolis/node/core/consensus/configuration.go
index dc3cd06..bb3db82 100644
--- a/metropolis/node/core/consensus/configuration.go
+++ b/metropolis/node/core/consensus/configuration.go
@@ -15,7 +15,7 @@
 	"source.monogon.dev/metropolis/node"
 	"source.monogon.dev/metropolis/node/core/identity"
 	"source.monogon.dev/metropolis/node/core/localstorage"
-	"source.monogon.dev/metropolis/pkg/pki"
+	"source.monogon.dev/osbase/pki"
 )
 
 // Config describes the startup configuration of a consensus instance.
diff --git a/metropolis/node/core/consensus/consensus.go b/metropolis/node/core/consensus/consensus.go
index 3244972..e749f7b 100644
--- a/metropolis/node/core/consensus/consensus.go
+++ b/metropolis/node/core/consensus/consensus.go
@@ -102,11 +102,11 @@
 
 	"source.monogon.dev/metropolis/node/core/consensus/client"
 	"source.monogon.dev/metropolis/node/core/identity"
-	"source.monogon.dev/metropolis/pkg/event"
-	"source.monogon.dev/metropolis/pkg/event/memory"
-	"source.monogon.dev/metropolis/pkg/logtree/unraw"
-	"source.monogon.dev/metropolis/pkg/pki"
-	"source.monogon.dev/metropolis/pkg/supervisor"
+	"source.monogon.dev/osbase/event"
+	"source.monogon.dev/osbase/event/memory"
+	"source.monogon.dev/osbase/logtree/unraw"
+	"source.monogon.dev/osbase/pki"
+	"source.monogon.dev/osbase/supervisor"
 )
 
 var (
diff --git a/metropolis/node/core/consensus/consensus_test.go b/metropolis/node/core/consensus/consensus_test.go
index 1866ff5..85df62e 100644
--- a/metropolis/node/core/consensus/consensus_test.go
+++ b/metropolis/node/core/consensus/consensus_test.go
@@ -29,8 +29,8 @@
 
 	"source.monogon.dev/metropolis/node/core/localstorage"
 	"source.monogon.dev/metropolis/node/core/localstorage/declarative"
-	"source.monogon.dev/metropolis/pkg/supervisor"
 	"source.monogon.dev/metropolis/test/util"
+	"source.monogon.dev/osbase/supervisor"
 )
 
 type boilerplate struct {
diff --git a/metropolis/node/core/consensus/logparser.go b/metropolis/node/core/consensus/logparser.go
index dbd3b1d..b403423 100644
--- a/metropolis/node/core/consensus/logparser.go
+++ b/metropolis/node/core/consensus/logparser.go
@@ -8,9 +8,9 @@
 	"strings"
 	"time"
 
-	"source.monogon.dev/metropolis/pkg/logbuffer"
-	"source.monogon.dev/metropolis/pkg/logtree"
-	"source.monogon.dev/metropolis/pkg/logtree/unraw"
+	"source.monogon.dev/osbase/logbuffer"
+	"source.monogon.dev/osbase/logtree"
+	"source.monogon.dev/osbase/logtree/unraw"
 )
 
 // etcdLogEntry is a JSON-encoded, structured log entry received from a running
diff --git a/metropolis/node/core/consensus/logparser_test.go b/metropolis/node/core/consensus/logparser_test.go
index c53c13d..cfe6fea 100644
--- a/metropolis/node/core/consensus/logparser_test.go
+++ b/metropolis/node/core/consensus/logparser_test.go
@@ -6,8 +6,8 @@
 
 	"github.com/google/go-cmp/cmp"
 
-	"source.monogon.dev/metropolis/pkg/logbuffer"
-	"source.monogon.dev/metropolis/pkg/logtree"
+	"source.monogon.dev/osbase/logbuffer"
+	"source.monogon.dev/osbase/logtree"
 )
 
 // TestParsing exercises the parseEtcdLogEntry function.
diff --git a/metropolis/node/core/consensus/status.go b/metropolis/node/core/consensus/status.go
index 44562bf..994e9f7 100644
--- a/metropolis/node/core/consensus/status.go
+++ b/metropolis/node/core/consensus/status.go
@@ -13,8 +13,8 @@
 	"source.monogon.dev/metropolis/node"
 	"source.monogon.dev/metropolis/node/core/consensus/client"
 	"source.monogon.dev/metropolis/node/core/identity"
-	"source.monogon.dev/metropolis/pkg/event"
-	"source.monogon.dev/metropolis/pkg/pki"
+	"source.monogon.dev/osbase/event"
+	"source.monogon.dev/osbase/pki"
 )
 
 // ServiceHandle is implemented by Service and should be the type expected by
diff --git a/metropolis/node/core/consensus/testhelpers.go b/metropolis/node/core/consensus/testhelpers.go
index 3522e06..3471e3c 100644
--- a/metropolis/node/core/consensus/testhelpers.go
+++ b/metropolis/node/core/consensus/testhelpers.go
@@ -6,7 +6,7 @@
 
 	clientv3 "go.etcd.io/etcd/client/v3"
 
-	"source.monogon.dev/metropolis/pkg/event/memory"
+	"source.monogon.dev/osbase/event/memory"
 )
 
 type testServiceHandle struct {