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[DRAFT] Implement CNI Status #114

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[DRAFT] Implement CNI Status #114

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dbc146e
wip: implement status
MikeZappa87 Feb 26, 2024
0466ecf
Update tests and return type
MikeZappa87 Feb 27, 2024
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41 changes: 33 additions & 8 deletions cni.go
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Original file line number Diff line number Diff line change
Expand Up @@ -41,10 +41,12 @@ type CNI interface {
Check(ctx context.Context, id string, path string, opts ...NamespaceOpts) error
// Load loads the cni network config
Load(opts ...Opt) error
// Status checks the status of the cni initialization
Status() error
// Status executes the status verb of the cni plugin
Status(ctx context.Context) ([]*NetworkStatus, error)
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@mikebrow mikebrow Mar 27, 2024 •
edited
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StatusDetail(ctx)...?

// GetConfig returns a copy of the CNI plugin configurations as parsed by CNI
GetConfig() *ConfigResult
// Ready checks the readiness of the cni system
Ready() error
}

type ConfigResult struct {
Expand Down Expand Up @@ -133,8 +135,7 @@ func (c *libcni) Load(opts ...Opt) error {
return nil
}

// Status returns the status of CNI initialization.
func (c *libcni) Status() error {
func (c *libcni) Ready() error {
c.RLock()
defer c.RUnlock()
if len(c.networks) < c.networkCount {
Expand All @@ -153,7 +154,7 @@ func (c *libcni) Networks() []*Network {

// Setup setups the network in the namespace and returns a Result
func (c *libcni) Setup(ctx context.Context, id string, path string, opts ...NamespaceOpts) (*Result, error) {
if err := c.Status(); err != nil {
if err := c.Ready(); err != nil {
return nil, err
}
ns, err := newNamespace(id, path, opts...)
Expand All @@ -169,7 +170,7 @@ func (c *libcni) Setup(ctx context.Context, id string, path string, opts ...Name

// SetupSerially setups the network in the namespace and returns a Result
func (c *libcni) SetupSerially(ctx context.Context, id string, path string, opts ...NamespaceOpts) (*Result, error) {
if err := c.Status(); err != nil {
if err := c.Ready(); err != nil {
return nil, err
}
ns, err := newNamespace(id, path, opts...)
Expand Down Expand Up @@ -232,7 +233,7 @@ func (c *libcni) attachNetworks(ctx context.Context, ns *Namespace) ([]*types100

// Remove removes the network config from the namespace
func (c *libcni) Remove(ctx context.Context, id string, path string, opts ...NamespaceOpts) error {
if err := c.Status(); err != nil {
if err := c.Ready(); err != nil {
return err
}
ns, err := newNamespace(id, path, opts...)
Expand Down Expand Up @@ -260,7 +261,7 @@ func (c *libcni) Remove(ctx context.Context, id string, path string, opts ...Nam

// Check checks if the network is still in desired state
func (c *libcni) Check(ctx context.Context, id string, path string, opts ...NamespaceOpts) error {
if err := c.Status(); err != nil {
if err := c.Ready(); err != nil {
return err
}
ns, err := newNamespace(id, path, opts...)
Expand Down Expand Up @@ -310,3 +311,27 @@ func (c *libcni) GetConfig() *ConfigResult {
func (c *libcni) reset() {
c.networks = nil
}

// Status returns a slice of network statuses
func (c *libcni) Status(ctx context.Context) ([]*NetworkStatus, error) {
err := c.Ready()

if err != nil {
return nil, err
}

var networks []*NetworkStatus

for _, network := range c.Networks() {
if network.config.Name == "cni-loopback" {
continue
}

networks = append(networks, &NetworkStatus{
Network: network,
Status: network.Status(ctx),
})
}

return networks, nil
}
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check.. eol at elf

21 changes: 18 additions & 3 deletions cni_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -45,7 +45,7 @@ func TestLibCNIType020(t *testing.T) {
err := l.Load(WithAllConf)
assert.NoError(t, err)

err = l.Status()
err = l.Ready()
assert.NoError(t, err)

mockCNI := &MockCNI{}
Expand Down Expand Up @@ -121,7 +121,7 @@ func TestLibCNIType040(t *testing.T) {
err := l.Load(WithAllConf)
assert.NoError(t, err)

err = l.Status()
err = l.Ready()
assert.NoError(t, err)

mockCNI := &MockCNI{}
Expand Down Expand Up @@ -209,7 +209,7 @@ func TestLibCNIType100(t *testing.T) {
err := l.Load(WithAllConf)
assert.NoError(t, err)

err = l.Status()
err = l.Ready()
assert.NoError(t, err)

mockCNI := &MockCNI{}
Expand Down Expand Up @@ -348,3 +348,18 @@ func (m *MockCNI) GetNetworkListCachedResult(net *cnilibrary.NetworkConfigList,
args := m.Called(net, rt)
return args.Get(0).(types.Result), args.Error(1)
}

func (m * MockCNI) GCNetworkList(ctx context.Context, net *cnilibrary.NetworkConfigList, gcargs *cnilibrary.GCArgs) error {
args := m.Called(net, gcargs)
return args.Error(0)
}

func (m *MockCNI) GetStatusNetworkList(ctx context.Context, net *cnilibrary.NetworkConfigList) error {
args := m.Called(net)
return args.Error(0)
}

func (m *MockCNI) GetCachedAttachments(containerID string) ([]*cnilibrary.NetworkAttachment, error) {
args := m.Called(containerID)
return args.Get(0).([]*cnilibrary.NetworkAttachment), args.Error(1)
}
3 changes: 2 additions & 1 deletion go.mod
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Original file line number Diff line number Diff line change
Expand Up @@ -3,11 +3,12 @@ module github.com/containerd/go-cni
go 1.19

require (
github.com/containernetworking/cni v1.1.2
github.com/containernetworking/cni v1.2.0-rc0
github.com/stretchr/testify v1.8.0
)

require (
github.com/Masterminds/semver/v3 v3.2.1 // indirect
github.com/davecgh/go-spew v1.1.1 // indirect
github.com/pmezard/go-difflib v1.0.0 // indirect
github.com/stretchr/objx v0.4.0 // indirect
Expand Down
107 changes: 15 additions & 92 deletions go.sum
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Open in desktop
Original file line number Diff line number Diff line change
@@ -1,108 +1,31 @@
github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
github.com/containernetworking/cni v1.1.2 h1:wtRGZVv7olUHMOqouPpn3cXJWpJgM6+EUl31EQbXALQ=
github.com/containernetworking/cni v1.1.2/go.mod h1:sDpYKmGVENF3s6uvMvGgldDWeG8dMxakj/u+i9ht9vw=
github.com/Masterminds/semver/v3 v3.2.1 h1:RN9w6+7QoMeJVGyfmbcgs28Br8cvmnucEXnY0rYXWg0=
github.com/Masterminds/semver/v3 v3.2.1/go.mod h1:qvl/7zhW3nngYb5+80sSMF+FG2BjYrf8m9wsX0PNOMQ=
github.com/containernetworking/cni v1.2.0-rc0 h1:x1pNLxXZXIe9MSumH7xqUNwSloc+715ZVRKML3/duMM=
github.com/containernetworking/cni v1.2.0-rc0/go.mod h1:Lt0TQcZQVDju64fYxUhDziTgXCDe3Olzi9I4zZJLWHg=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
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github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
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github.com/onsi/ginkgo/v2 v2.13.2 h1:Bi2gGVkfn6gQcjNjZJVO8Gf0FHzMPf2phUei9tejVMs=
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golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20201224043029-2b0845dc783e/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
github.com/vishvananda/netns v0.0.4 h1:Oeaw1EM2JMxD51g9uhtC0D7erkIjgmj8+JZc26m1YX8=
golang.org/x/net v0.17.0 h1:pVaXccu2ozPjCXewfr1S7xza/zcXTity9cCdXQYSjIM=
golang.org/x/sys v0.14.0 h1:Vz7Qs629MkJkGyHxUlRHizWJRG2j8fbQKjELVSNhy7Q=
golang.org/x/text v0.13.0 h1:ablQoSUd0tRdKxZewP80B+BaqeKJuVhuRxj/dkrun3k=
golang.org/x/tools v0.14.0 h1:jvNa2pY0M4r62jkRQ6RwEZZyPcymeL9XZMLBbV7U2nc=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
4 changes: 4 additions & 0 deletions namespace.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -45,6 +45,10 @@ func (n *Network) Check(ctx context.Context, ns *Namespace) error {
return n.cni.CheckNetworkList(ctx, n.config, ns.config(n.ifName))
}

func (n *Network) Status(ctx context.Context) error {
return n.cni.GetStatusNetworkList(ctx, n.config)
}

type Namespace struct {
id string
path string
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5 changes: 5 additions & 0 deletions types.go
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Original file line number Diff line number Diff line change
Expand Up @@ -60,3 +60,8 @@ type DNS struct {
// List of DNS options.
Options []string
}

type NetworkStatus struct {
Network *Network
Status error
}
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