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Use the term 'role' or 'node' rather than 'peer' in the context of garage

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This commit is contained in:
Brian Picciano 2024-11-08 17:46:44 +01:00
parent 734406d4bb
commit 53a06af9ba
10 changed files with 78 additions and 86 deletions
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24
go/bootstrap/garage.go
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@ -4,26 +4,26 @@ import (
"isle/garage"
)
// GaragePeers returns a Peer for each known garage instance in the network.
func (b Bootstrap) GaragePeers() []garage.RemotePeer {
var peers []garage.RemotePeer
// GarageNodes returns a Node for each known garage instance in the network.
func (b Bootstrap) GarageNodes() []garage.RemoteNode {
var nodes []garage.RemoteNode
for _, host := range b.Hosts {
peers = append(peers, host.GaragePeers()...)
nodes = append(nodes, host.GarageNodes()...)
}
return peers
return nodes
}
// ChooseGaragePeer returns a Peer for a garage instance from the network. It
// will prefer a garage instance on this particular host, if there is one, but
// will otherwise return a random endpoint.
func (b Bootstrap) ChooseGaragePeer() garage.RemotePeer {
// ChooseGarageNode returns a RemoteNode for a garage instance from the network.
// It will prefer a garage instance on this particular host, if there is one,
// but will otherwise return a random endpoint.
func (b Bootstrap) ChooseGarageNode() garage.RemoteNode {
thisHost := b.ThisHost()
if len(thisHost.Garage.Instances) > 0 {
return thisHost.GaragePeers()[0]
return thisHost.GarageNodes()[0]
}
for _, peer := range b.GaragePeers() {
return peer
for _, node := range b.GarageNodes() {
return node
}
panic("no garage instances configured")

10
go/bootstrap/hosts.go
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@ -93,17 +93,17 @@ func (h Host) IP() netip.Addr {
return addr
}
// GaragePeers returns a RemotePeer for each garage instance advertised by this
// GarageNodes returns a RemoteNode for each garage instance advertised by this
// Host.
func (h Host) GaragePeers() []garage.RemotePeer {
var peers []garage.RemotePeer
func (h Host) GarageNodes() []garage.RemoteNode {
var nodes []garage.RemoteNode
for _, instance := range h.Garage.Instances {
peers = append(peers, garage.RemotePeer{
nodes = append(nodes, garage.RemoteNode{
ID: instance.ID,
IP: h.IP().String(),
RPCPort: instance.RPCPort,
S3APIPort: instance.S3APIPort,
})
}
return peers
return nodes
}

4
go/cmd/entrypoint/garage.go
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@ -56,7 +56,7 @@ var subCmdGarageMC = subCmd{
return fmt.Errorf("calling GetGarageClientParams: %w", err)
}
s3APIAddr := clientParams.Peer.S3APIAddr()
s3APIAddr := clientParams.Node.S3APIAddr()
if *keyID == "" {
*keyID = clientParams.GlobalBucketS3APICredentials.ID
@ -135,7 +135,7 @@ var subCmdGarageCLI = subCmd{
args = append([]string{"garage"}, ctx.args...)
cliEnv = append(
os.Environ(),
"GARAGE_RPC_HOST="+clientParams.Peer.RPCPeerAddr(),
"GARAGE_RPC_HOST="+clientParams.Node.RPCNodeAddr(),
"GARAGE_RPC_SECRET="+clientParams.RPCSecret,
)
)

8
go/daemon/children/garage.go
View File

@ -76,8 +76,8 @@ func garageWriteChildConfig(
thisHost = hostBootstrap.ThisHost()
id = daecommon.BootstrapGarageHostForAlloc(thisHost, alloc).ID
peer = garage.LocalPeer{
RemotePeer: garage.RemotePeer{
node = garage.LocalNode{
RemoteNode: garage.RemoteNode{
ID: id,
IP: thisHost.IP().String(),
RPCPort: alloc.RPCPort,
@ -102,8 +102,8 @@ func garageWriteChildConfig(
RPCSecret: rpcSecret,
AdminToken: adminToken,
LocalPeer: peer,
BootstrapPeers: hostBootstrap.GaragePeers(),
LocalNode: node,
BootstrapPeers: hostBootstrap.GarageNodes(),
},
)

14
go/daemon/network/garage.go
View File

@ -46,7 +46,7 @@ func getGarageClientParams(
}
return GarageClientParams{
Peer: currBootstrap.ChooseGaragePeer(),
Node: currBootstrap.ChooseGarageNode(),
GlobalBucketS3APICredentials: creds,
RPCSecret: rpcSecret,
}, nil
@ -88,8 +88,8 @@ func garageApplyLayout(
)
hostName = currHost.Name
allocs = networkConfig.Storage.Allocations
peers = make([]garage.PeerLayout, len(allocs))
peerIDs = map[string]struct{}{}
roles = make([]garage.Role, len(allocs))
roleIDs = map[string]struct{}{}
idsToRemove = make([]string, 0, len(prevHost.Garage.Instances))
)
@ -98,14 +98,14 @@ func garageApplyLayout(
for i, alloc := range allocs {
id := daecommon.BootstrapGarageHostForAlloc(currHost, alloc).ID
peerIDs[id] = struct{}{}
roleIDs[id] = struct{}{}
zone := string(hostName)
if alloc.Zone != "" {
zone = alloc.Zone
}
peers[i] = garage.PeerLayout{
roles[i] = garage.Role{
ID: id,
Capacity: alloc.Capacity * 1_000_000_000,
Zone: zone,
@ -114,12 +114,12 @@ func garageApplyLayout(
}
for _, prevInst := range prevHost.Garage.Instances {
if _, ok := peerIDs[prevInst.ID]; !ok {
if _, ok := roleIDs[prevInst.ID]; !ok {
idsToRemove = append(idsToRemove, prevInst.ID)
}
}
return adminClient.ApplyLayout(ctx, peers, idsToRemove)
return adminClient.ApplyLayout(ctx, roles, idsToRemove)
}
func garageInitializeGlobalBucket(

4
go/daemon/network/network.go
View File

@ -31,7 +31,7 @@ import (
// GarageClientParams contains all the data needed to instantiate garage
// clients.
type GarageClientParams struct {
Peer garage.RemotePeer
Node garage.RemoteNode
GlobalBucketS3APICredentials garage.S3APICredentials
// RPCSecret may be empty, if the secret is not available on the host.
@ -44,7 +44,7 @@ type GarageClientParams struct {
// the global bucket.
func (p GarageClientParams) GlobalBucketS3APIClient() *garage.S3APIClient {
var (
addr = p.Peer.S3APIAddr()
addr = p.Node.S3APIAddr()
creds = p.GlobalBucketS3APICredentials
)
return garage.NewS3APIClient(addr, creds)

18
go/daemon/network/network_it_test.go
View File

@ -82,19 +82,19 @@ func TestNetwork_GetConfig(t *testing.T) {
}
func TestNetwork_SetConfig(t *testing.T) {
allocsToPeerLayouts := func(
allocsToRoles := func(
hostName nebula.HostName, allocs []bootstrap.GarageHostInstance,
) []garage.PeerLayout {
peers := make([]garage.PeerLayout, len(allocs))
) []garage.Role {
roles := make([]garage.Role, len(allocs))
for i := range allocs {
peers[i] = garage.PeerLayout{
roles[i] = garage.Role{
ID: allocs[i].ID,
Capacity: 1_000_000_000,
Zone: string(hostName),
Tags: []string{},
}
}
return peers
return roles
}
t.Run("add storage alloc", func(t *testing.T) {
@ -142,10 +142,10 @@ func TestNetwork_SetConfig(t *testing.T) {
assert.Equal(t, newHostsByName, storedBootstrap.Hosts)
t.Log("Checking that garage layout contains the new allocation")
expPeers := allocsToPeerLayouts(network.hostName, allocs)
expRoles := allocsToRoles(network.hostName, allocs)
layout, err := network.garageAdminClient(t).GetLayout(h.ctx)
assert.NoError(t, err)
assert.ElementsMatch(t, expPeers, layout.Peers)
assert.ElementsMatch(t, expRoles, layout.Roles)
})
t.Run("remove storage alloc", func(t *testing.T) {
@ -183,10 +183,10 @@ func TestNetwork_SetConfig(t *testing.T) {
assert.Equal(t, newHostsByName, storedBootstrap.Hosts)
t.Log("Checking that garage layout contains the new allocation")
expPeers := allocsToPeerLayouts(network.hostName, allocs)
expRoles := allocsToRoles(network.hostName, allocs)
layout, err := network.garageAdminClient(t).GetLayout(h.ctx)
assert.NoError(t, err)
assert.ElementsMatch(t, expPeers, layout.Peers)
assert.ElementsMatch(t, expRoles, layout.Roles)
})
// TODO a host having allocs but removing all of them

48
go/garage/admin_client.go
View File

@ -283,9 +283,9 @@ func (c *AdminClient) GrantBucketPermissions(
})
}
// PeerLayout describes the properties of a garage peer in the context of the
// layout of the cluster.
type PeerLayout struct {
// Role descibes a node's role in the garage cluster, i.e. what storage it is
// providing.
type Role struct {
ID string `json:"id"`
Capacity int `json:"capacity"` // Gb (SI units)
Zone string `json:"zone"`
@ -294,7 +294,7 @@ type PeerLayout struct {
// ClusterLayout describes the layout of the cluster as a whole.
type ClusterLayout struct {
Peers []PeerLayout `json:"roles"`
Roles []Role `json:"roles"`
}
// GetLayout returns the currently applied ClusterLayout.
@ -306,42 +306,34 @@ func (c *AdminClient) GetLayout(ctx context.Context) (ClusterLayout, error) {
}
// ApplyLayout modifies the layout of the garage cluster. Only layout of the
// given peers will be modified/created/removed, other peers are not affected.
// given roles will be modified/created/removed, other roles are not affected.
func (c *AdminClient) ApplyLayout(
ctx context.Context, addModifyPeers []PeerLayout, removePeerIDs []string,
ctx context.Context, addModifyRoles []Role, removeRoleIDs []string,
) error {
type removePeer struct {
type removeRole struct {
ID string `json:"id"`
Remove bool `json:"remove"`
}
peers := make([]any, 0, len(addModifyPeers)+len(removePeerIDs))
for _, p := range addModifyPeers {
peers = append(peers, p)
roles := make([]any, 0, len(addModifyRoles)+len(removeRoleIDs))
for _, p := range addModifyRoles {
roles = append(roles, p)
}
for _, id := range removePeerIDs {
peers = append(peers, removePeer{ID: id, Remove: true})
}
{
// https://garagehq.deuxfleurs.fr/api/garage-admin-v1.html#tag/Layout/operation/ApplyLayout
err := c.do(ctx, nil, "POST", "/v1/layout", peers)
if err != nil {
return fmt.Errorf("staging layout changes: %w", err)
}
for _, id := range removeRoleIDs {
roles = append(roles, removeRole{ID: id, Remove: true})
}
// https://garagehq.deuxfleurs.fr/api/garage-admin-v1.html#tag/Layout/operation/GetLayout
var clusterLayout struct {
Version int `json:"version"`
StagedRoleChanges []PeerLayout `json:"stagedRoleChanges"`
Version int `json:"version"`
StagedRoleChanges []Role `json:"stagedRoleChanges"`
}
if err := c.do(ctx, &clusterLayout, "GET", "/v1/layout", nil); err != nil {
return fmt.Errorf("retrieving staged layout change: %w", err)
}
if len(clusterLayout.StagedRoleChanges) == 0 {
// https://garagehq.deuxfleurs.fr/api/garage-admin-v1.html#tag/Layout/operation/ApplyLayout
err := c.do(ctx, &clusterLayout, "POST", "/v1/layout", roles)
if err != nil {
return fmt.Errorf("staging layout changes: %w", err)
} else if len(clusterLayout.StagedRoleChanges) == 0 {
return nil
}
@ -352,7 +344,7 @@ func (c *AdminClient) ApplyLayout(
Version: clusterLayout.Version + 1,
}
err := c.do(ctx, nil, "POST", "/v1/layout/apply", applyClusterLayout)
err = c.do(ctx, nil, "POST", "/v1/layout/apply", applyClusterLayout)
if err != nil {
return fmt.Errorf("applying new layout (new version:%d): %w", applyClusterLayout.Version, err)
}

8
go/garage/garagesrv/tpl.go
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@ -23,8 +23,8 @@ type GarageTomlData struct {
RPCSecret string
AdminToken string
garage.LocalPeer
BootstrapPeers []garage.RemotePeer
garage.LocalNode
BootstrapPeers []garage.RemoteNode
}
var garageTomlTpl = template.Must(template.New("").Parse(`
@ -38,7 +38,7 @@ rpc_bind_addr = "{{ .RPCAddr }}"
rpc_public_addr = "{{ .RPCAddr }}"
bootstrap_peers = [{{- range .BootstrapPeers }}
"{{ .RPCPeerAddr }}",
"{{ .RPCNodeAddr }}",
{{ end -}}]
[s3_api]
@ -66,7 +66,7 @@ func WriteGarageTomlFile(
) (
bool, error,
) {
slices.SortFunc(data.BootstrapPeers, func(i, j garage.RemotePeer) int {
slices.SortFunc(data.BootstrapPeers, func(i, j garage.RemoteNode) int {
return cmp.Or(
cmp.Compare(i.IP, j.IP),
cmp.Compare(i.RPCPort, j.RPCPort),

26
go/garage/peer.go
View File

@ -6,39 +6,39 @@ import (
"strconv"
)
// RemotePeer describes all information necessary to connect to a given garage
// RemoteNode describes all information necessary to connect to a given garage
// node.
type RemotePeer struct {
type RemoteNode struct {
ID string
IP string
RPCPort int
S3APIPort int
}
// LocalPeer describes the configuration of a local garage instance.
type LocalPeer struct {
RemotePeer
// LocalNode describes the configuration of a local garage instance.
type LocalNode struct {
RemoteNode
AdminPort int
}
// RPCAddr returns the address of the peer's RPC port.
func (p RemotePeer) RPCAddr() string {
// RPCAddr returns the address of the node's RPC port.
func (p RemoteNode) RPCAddr() string {
return net.JoinHostPort(p.IP, strconv.Itoa(p.RPCPort))
}
// RPCPeerAddr returns the full peer address (e.g. "id@ip:port") of the garage
// RPCNodeAddr returns the full node address (e.g. "id@ip:port") of the garage
// node for use in communicating over RPC.
func (p RemotePeer) RPCPeerAddr() string {
func (p RemoteNode) RPCNodeAddr() string {
return fmt.Sprintf("%s@%s", p.ID, p.RPCAddr())
}
// S3APIAddr returns the address of the peer's S3 API port.
func (p RemotePeer) S3APIAddr() string {
// S3APIAddr returns the address of the node's S3 API port.
func (p RemoteNode) S3APIAddr() string {
return net.JoinHostPort(p.IP, strconv.Itoa(p.S3APIPort))
}
// AdminAddr returns the address of the peer's S3 API port.
func (p LocalPeer) AdminAddr() string {
// AdminAddr returns the address of the node's S3 API port.
func (p LocalNode) AdminAddr() string {
return net.JoinHostPort(p.IP, strconv.Itoa(p.AdminPort))
}