github.com/inspektor-gadget/inspektor-gadget@v0.28.1/pkg/container-collection/match.go (about)

     1  // Copyright 2019-2021 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 containercollection
    16  
    17  import (
    18  	"slices"
    19  	"strings"
    20  )
    21  
    22  // ContainerSelectorMatches tells if a container matches the criteria in a
    23  // container selector.
    24  func ContainerSelectorMatches(s *ContainerSelector, c *Container) bool {
    25  	if s.K8s.Namespace != "" && !slices.Contains(strings.Split(s.K8s.Namespace, ","), c.K8s.Namespace) {
    26  		return false
    27  	}
    28  	if s.K8s.PodName != "" && s.K8s.PodName != c.K8s.PodName {
    29  		return false
    30  	}
    31  	if s.K8s.ContainerName != "" && s.K8s.ContainerName != c.K8s.ContainerName {
    32  		return false
    33  	}
    34  	if s.Runtime.ContainerName != "" && s.Runtime.ContainerName != c.Runtime.ContainerName {
    35  		return false
    36  	}
    37  	for sk, sv := range s.K8s.PodLabels {
    38  		if cv, ok := c.K8s.PodLabels[sk]; !ok || cv != sv {
    39  			return false
    40  		}
    41  	}
    42  	return true
    43  }