From 8494bcb866f1c0978cbe35c62c1e3312a91040b4 Mon Sep 17 00:00:00 2001 From: Paul Holzinger Date: Fri, 27 Nov 2020 18:02:27 +0100 Subject: podman network label support Add label support for podman network create. Use the `args` field in the cni config file to store the podman labels. Use `podman_labels` as key name and store the labels as map[string]string. For reference: https://github.com/containernetworking/cni/blob/master/CONVENTIONS.md#args-in-network-config https://github.com/containernetworking/cni/blob/spec-v0.4.0/SPEC.md#network-configuration Example snippet: ``` ... "args": { "podman_labels": { "key1":"value1", "key2":"value2" } } ... ``` Make podman network list support several filters. Supported filters are name, plugin, driver and label. Filters with different keys work exclusive. Several label filters work exclusive and the other filter keys are working inclusive. Also adjust the compat api to support labels in network create and list. Breaking changes: - podman network ls -f shortform is used for --filter instead --format This matches docker and other podman commands (container ps, volume ps) - libpod network list endpoint filter parameter is removed. Instead the filters paramter should be used as json encoded map[string][]string. Signed-off-by: Paul Holzinger --- pkg/api/handlers/compat/networks.go | 47 ++++++++++++++++--------------------- pkg/api/handlers/libpod/networks.go | 4 ++-- 2 files changed, 22 insertions(+), 29 deletions(-) (limited to 'pkg/api/handlers') diff --git a/pkg/api/handlers/compat/networks.go b/pkg/api/handlers/compat/networks.go index c74cdb840..762f88a68 100644 --- a/pkg/api/handlers/compat/networks.go +++ b/pkg/api/handlers/compat/networks.go @@ -50,7 +50,7 @@ func InspectNetwork(w http.ResponseWriter, r *http.Request) { utils.NetworkNotFound(w, name, err) return } - report, err := getNetworkResourceByName(name, runtime) + report, err := getNetworkResourceByName(name, runtime, nil) if err != nil { utils.InternalServerError(w, err) return @@ -58,7 +58,7 @@ func InspectNetwork(w http.ResponseWriter, r *http.Request) { utils.WriteResponse(w, http.StatusOK, report) } -func getNetworkResourceByName(name string, runtime *libpod.Runtime) (*types.NetworkResource, error) { +func getNetworkResourceByName(name string, runtime *libpod.Runtime, filters map[string][]string) (*types.NetworkResource, error) { var ( ipamConfigs []dockerNetwork.IPAMConfig ) @@ -85,6 +85,16 @@ func getNetworkResourceByName(name string, runtime *libpod.Runtime) (*types.Netw if err != nil { return nil, err } + if len(filters) > 0 { + ok, err := network.IfPassesFilter(conf, filters) + if err != nil { + return nil, err + } + if !ok { + // do not return the config if we did not match the filter + return nil, nil + } + } // No Bridge plugin means we bail bridge, err := genericPluginsToBridge(conf.Plugins, network.DefaultNetworkDriver) @@ -129,14 +139,14 @@ func getNetworkResourceByName(name string, runtime *libpod.Runtime) (*types.Netw Options: nil, Config: ipamConfigs, }, - Internal: false, + Internal: !bridge.IsGW, Attachable: false, Ingress: false, ConfigFrom: dockerNetwork.ConfigReference{}, ConfigOnly: false, Containers: containerEndpoints, Options: nil, - Labels: nil, + Labels: network.GetNetworkLabels(conf), Peers: nil, Services: nil, } @@ -180,41 +190,23 @@ func ListNetworks(w http.ResponseWriter, r *http.Request) { return } - filterNames, nameFilterExists := query.Filters["name"] - // TODO remove when filters are implemented - if (!nameFilterExists && len(query.Filters) > 0) || len(query.Filters) > 1 { - utils.InternalServerError(w, errors.New("only the name filter for listing networks is implemented")) - return - } netNames, err := network.GetNetworkNamesFromFileSystem(config) if err != nil { utils.InternalServerError(w, err) return } - // filter by name - if nameFilterExists { - names := []string{} - for _, name := range netNames { - for _, filter := range filterNames { - if strings.Contains(name, filter) { - names = append(names, name) - break - } - } - } - netNames = names - } - - reports := make([]*types.NetworkResource, 0, len(netNames)) + var reports []*types.NetworkResource logrus.Errorf("netNames: %q", strings.Join(netNames, ", ")) for _, name := range netNames { - report, err := getNetworkResourceByName(name, runtime) + report, err := getNetworkResourceByName(name, runtime, query.Filters) if err != nil { utils.InternalServerError(w, err) return } - reports = append(reports, report) + if report != nil { + reports = append(reports, report) + } } utils.WriteResponse(w, http.StatusOK, reports) } @@ -245,6 +237,7 @@ func CreateNetwork(w http.ResponseWriter, r *http.Request) { ncOptions := entities.NetworkCreateOptions{ Driver: network.DefaultNetworkDriver, Internal: networkCreate.Internal, + Labels: networkCreate.Labels, } if networkCreate.IPAM != nil && networkCreate.IPAM.Config != nil { if len(networkCreate.IPAM.Config) > 1 { diff --git a/pkg/api/handlers/libpod/networks.go b/pkg/api/handlers/libpod/networks.go index f1578f829..8511e2733 100644 --- a/pkg/api/handlers/libpod/networks.go +++ b/pkg/api/handlers/libpod/networks.go @@ -48,7 +48,7 @@ func ListNetworks(w http.ResponseWriter, r *http.Request) { runtime := r.Context().Value("runtime").(*libpod.Runtime) decoder := r.Context().Value("decoder").(*schema.Decoder) query := struct { - Filter string `schema:"filter"` + Filters map[string][]string `schema:"filters"` }{ // override any golang type defaults } @@ -59,7 +59,7 @@ func ListNetworks(w http.ResponseWriter, r *http.Request) { } options := entities.NetworkListOptions{ - Filter: query.Filter, + Filters: query.Filters, } ic := abi.ContainerEngine{Libpod: runtime} reports, err := ic.NetworkList(r.Context(), options) -- cgit v1.2.3-54-g00ecf