github.com/inspektor-gadget/inspektor-gadget@v0.28.1/pkg/runtime/grpc/info.go (about)

     1  // Copyright 2023-2024 The Inspektor Gadget authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package grpcruntime
    16  
    17  import (
    18  	"context"
    19  	"encoding/json"
    20  	"fmt"
    21  	"math"
    22  	"time"
    23  
    24  	log "github.com/sirupsen/logrus"
    25  
    26  	"github.com/inspektor-gadget/inspektor-gadget/internal/deployinfo"
    27  	"github.com/inspektor-gadget/inspektor-gadget/pkg/gadget-service/api"
    28  )
    29  
    30  // InitDeployInfo loads the locally stored deploy info. If no deploy info is stored locally,
    31  // it will try to fetch it from one of the remotes and store it locally. It will issue warnings on
    32  // failures.
    33  func (r *Runtime) InitDeployInfo() {
    34  	// Initialize info
    35  	info, err := deployinfo.Load()
    36  	if err == nil {
    37  		r.info = info
    38  		return
    39  	}
    40  
    41  	info, err = r.loadRemoteDeployInfo()
    42  	if err != nil {
    43  		log.Warnf("could not load gadget info from remote: %v", err)
    44  		return
    45  	}
    46  
    47  	r.info = info
    48  
    49  	err = deployinfo.Store(info)
    50  	if err != nil {
    51  		log.Warnf("could not store gadget info: %v", err)
    52  	}
    53  }
    54  
    55  func (r *Runtime) UpdateDeployInfo() error {
    56  	info, err := r.loadRemoteDeployInfo()
    57  	if err != nil {
    58  		return fmt.Errorf("loading remote gadget info: %w", err)
    59  	}
    60  
    61  	return deployinfo.Store(info)
    62  }
    63  
    64  func (r *Runtime) loadRemoteDeployInfo() (*deployinfo.DeployInfo, error) {
    65  	duration := r.globalParams.Get(ParamConnectionTimeout).AsUint()
    66  	if duration > math.MaxInt64 {
    67  		return nil, fmt.Errorf("duration (%d) exceeds math.MaxInt64 (%d)", duration, math.MaxInt64)
    68  	}
    69  	timeout := time.Second * time.Duration(duration)
    70  	ctx, cancelDial := context.WithTimeout(context.Background(), timeout)
    71  	defer cancelDial()
    72  
    73  	// use default params for now
    74  	params := r.ParamDescs().ToParams()
    75  	conn, err := r.getConnToRandomTarget(ctx, params)
    76  	if err != nil {
    77  		return nil, fmt.Errorf("dialing random target: %w", err)
    78  	}
    79  	defer conn.Close()
    80  	client := api.NewBuiltInGadgetManagerClient(conn)
    81  
    82  	info, err := client.GetInfo(ctx, &api.InfoRequest{Version: "1.0"})
    83  	if err != nil {
    84  		return nil, fmt.Errorf("get info from gadget pod: %w", err)
    85  	}
    86  
    87  	retInfo := &deployinfo.DeployInfo{
    88  		Experimental:  info.Experimental,
    89  		ServerVersion: info.ServerVersion,
    90  	}
    91  	err = json.Unmarshal(info.Catalog, &retInfo.Catalog)
    92  	if err != nil {
    93  		return nil, fmt.Errorf("unmarshaling info: %w", err)
    94  	}
    95  
    96  	return retInfo, nil
    97  }