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add env var to disable container image update checks (#2371)

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henrygd
2026-09-21 10:49:53 -04:00
parent 2c69197d2d
commit cbe4824ac3
3 changed files with 38 additions and 8 deletions
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20
agent/docker.go
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@@ -68,10 +68,11 @@ type dockerManager struct {
excludeContainers []string // Patterns to exclude containers by name
usingPodman bool // Whether the Docker Engine API is running on Podman
registryClient *http.Client // Client for registry requests; nil uses a client with a 10-second timeout
imageUpdatesMutex sync.RWMutex // Protects imageUpdates, its entries, and imageUpdatesRunning
imageUpdates map[string]*imageUpdateStatus // Shared update status keyed by normalized image reference
imageUpdatesRunning bool // Whether a background image-update batch is in progress
registryClient *http.Client // Client for registry requests; nil uses a client with a 10-second timeout
imageUpdatesDisabled bool // Whether image update checks are disabled by configuration
imageUpdatesMutex sync.RWMutex // Protects imageUpdates, its entries, and imageUpdatesRunning
imageUpdates map[string]*imageUpdateStatus // Shared update status keyed by normalized image reference
imageUpdatesRunning bool // Whether a background image-update batch is in progress
// Cache-time-aware tracking for CPU stats (similar to cpu.go)
// Maps cache time intervals to container-specific CPU usage tracking
@@ -688,6 +689,8 @@ func newDockerManager(agent *Agent) *dockerManager {
userAgent: "Docker-Client/",
}
dockerImageCheck, _ := utils.GetEnv("DOCKER_IMAGE_CHECK")
// Read container exclusion patterns from environment variable
var excludeContainers []string
if excludeStr, set := utils.GetEnv("EXCLUDE_CONTAINERS"); set && excludeStr != "" {
@@ -707,10 +710,11 @@ func newDockerManager(agent *Agent) *dockerManager {
Timeout: timeout,
Transport: userAgentTransport,
},
containerStatsMap: make(map[string]*container.Stats),
sem: make(chan struct{}, 5),
apiContainerList: []*container.ApiInfo{},
excludeContainers: excludeContainers,
containerStatsMap: make(map[string]*container.Stats),
sem: make(chan struct{}, 5),
apiContainerList: []*container.ApiInfo{},
excludeContainers: excludeContainers,
imageUpdatesDisabled: dockerImageCheck == "false",
// Initialize cache-time-aware tracking structures
lastCpuContainer: make(map[uint16]map[string]uint64),