Warning: Invalid argument supplied for foreach() in /Normalizer/NetworkSettingsNormalizer.php on line 60

[lyrixx]

The code I'm using

foreach ($this->client->containerList(['all' => true]) as $container) {
    $this->client->containerInspect($container->getId());
}

The error

Warning: Invalid argument supplied for foreach() in project/vendor/docker-php/docker-php-api/src/Normalizer/NetworkSettingsNormalizer.php on line 60

Call Stack:
    0.0012     548600   1. {main}() project/index.php:0
    0.0412    6503248   2. Symfony\Component\Console\Application->run() project/index.php:61
    0.0462    6840144   3. Symfony\Component\Console\Application->doRun() project/vendor/symfony/console/Application.php:145
    0.0467    6843520   4. Symfony\Component\Console\Application->doRunCommand() project/vendor/symfony/console/Application.php:269
    0.0467    6843520   5. DockerCleanCommand->run() project/vendor/symfony/console/Application.php:908
    0.0470    6845352   6. DockerCleanCommand->execute() project/vendor/symfony/console/Command/Command.php:255
    0.0470    6845352   7. DockerCleanCommand->cleanContainers() project/index.php:35
    0.5665    8517720   8. Docker\Docker->containerInspect() project/index.php:52
    0.5665    8517848   9. Docker\Docker->executePsr7Endpoint() project/vendor/docker-php/docker-php-api/src/Client.php:81
    0.5680    8542640  10. Docker\API\Endpoint\ContainerInspect->parsePSR7Response() project/vendor/jane-php/open-api-runtime/Client/Psr7HttplugClient.php:48
    0.5681    8549056  11. Docker\API\Endpoint\ContainerInspect->transformResponseBody() project/vendor/jane-php/open-api-runtime/Client/Psr7HttplugEndpointTrait.php:18
    0.5681    8549056  12. Symfony\Component\Serializer\Serializer->deserialize() project/vendor/docker-php/docker-php-api/src/Endpoint/ContainerInspect.php:76
    0.5682    8578808  13. Symfony\Component\Serializer\Serializer->denormalize() project/vendor/symfony/serializer/Serializer.php:142
    0.5686    8578808  14. Docker\API\Normalizer\ContainersIdJsonGetResponse200Normalizer->denormalize() project/vendor/symfony/serializer/Serializer.php:191
    0.5698    8586768  15. Symfony\Component\Serializer\Serializer->denormalize() project/vendor/docker-php/docker-php-api/src/Normalizer/ContainersIdJsonGetResponse200Normalizer.php:122
    0.5699    8586768  16. Docker\API\Normalizer\NetworkSettingsNormalizer->denormalize() project/vendor/symfony/serializer/Serializer.php:191

docker version:

Client:
 Version:           18.09.3
 API version:       1.39
 Go version:        go1.10.8
 Git commit:        774a1f4
 Built:             Thu Feb 28 06:53:11 2019
 OS/Arch:           linux/amd64
 Experimental:      false

Server: Docker Engine - Community
 Engine:
  Version:          18.09.3
  API version:      1.39 (minimum version 1.12)
  Go version:       go1.10.8
  Git commit:       774a1f4
  Built:            Thu Feb 28 05:59:55 2019
  OS/Arch:          linux/amd64
  Experimental:     false

composer show:

docker-php/docker-php             v2.0.0    A Docker PHP client
docker-php/docker-php-api         v4.1.36.1 Docker API generated files from OpenAPI Specification

the raw API response

{
   "Created" : "2019-03-20T13:39:58.670340274Z",
   "Name" : "/project_frontend_1",
   "Mounts" : [
      {
         "Destination" : "/var/www",
         "Type" : "bind",
         "Propagation" : "rprivate",
         "RW" : true,
         "Source" : "/home/gregoire/dev/simon.project.io/project-com",
         "Mode" : "cached"
      }
   ],
   "AppArmorProfile" : "docker-default",
   "State" : {
      "Error" : "",
      "Restarting" : false,
      "Dead" : false,
      "OOMKilled" : false,
      "Status" : "running",
      "Paused" : false,
      "ExitCode" : 0,
      "Pid" : 8149,
      "Running" : true,
      "StartedAt" : "2019-03-20T13:39:59.849183665Z",
      "FinishedAt" : "0001-01-01T00:00:00Z"
   },
   "ExecIDs" : null,
   "MountLabel" : "",
   "LogPath" : "/var/lib/docker/containers/478635e689785f6fab1866a538cc54bb4a006e309d8b9d44f7eaeff96ac56707/478635e689785f6fab1866a538cc54bb4a006e309d8b9d44f7eaeff96ac56707-json.log",
   "Config" : {
      "Labels" : {
         "com.docker.compose.oneoff" : "False",
         "com.docker.compose.project" : "project",
         "traefik.frontend.rule" : "Host:ae.www.project.test, api.project.test, au.www.project.test, be.www.project.test, bh.www.project.test, bo.project.test, br.www.project.test, ch.www.project.test, ch.www.project.test, com.www.project.test, de-ch.www.project.test, es.www.project.test, fr.www.project.test, hk.www.project.test, it.www.project.test, kr.www.project.test, nl-be.www.project.test, nl.www.project.test, ota.project.test, partners.project.test, pt.www.project.test, qa.www.project.test, sa.www.project.test, sg.www.project.test, tw.www.project.test, uk.www.project.test",
         "traefik.frontend.entryPoints" : "https",
         "com.docker.compose.config-hash" : "8a4b142defe09c587ba67864261ef656bc583e6767e584ebc244f25b91ae3d86",
         "traefik.port" : "80",
         "com.docker.compose.service" : "frontend",
         "com.docker.compose.version" : "1.23.2",
         "com.docker.compose.container-number" : "1"
      },
      "AttachStderr" : false,
      "Volumes" : {
         "/var/www" : {}
      },
      "Cmd" : [
         "runsvdir",
         "-P",
         "/etc/service"
      ],
      "AttachStdin" : false,
      "ArgsEscaped" : true,
      "WorkingDir" : "",
      "ExposedPorts" : {
         "80/tcp" : {}
      },
      "Image" : "project_frontend",
      "OnBuild" : null,
      "AttachStdout" : false,
      "Domainname" : "",
      "StdinOnce" : false,
      "Hostname" : "478635e68978",
      "Tty" : false,
      "Env" : [
         "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
      ],
      "User" : "",
      "OpenStdin" : false,
      "Entrypoint" : null
   },
   "NetworkSettings" : {
      "HairpinMode" : false,
      "IPPrefixLen" : 0,
      "MacAddress" : "",
      "IPAddress" : "",
      "IPv6Gateway" : "",
      "LinkLocalIPv6Address" : "",
      "GlobalIPv6Address" : "",
      "Networks" : {
         "project_default" : {
            "Links" : null,
            "EndpointID" : "ecab145d8a5b3a45980ff913e54ea7051845db8fc79229773b6ea903fe052f3d",
            "IPAMConfig" : null,
            "Gateway" : "172.20.0.1",
            "NetworkID" : "d6305c03563b4a24111222fd3eb24ca94572f7ad58020b95d6e0eb9356f75074",
            "Aliases" : [
               "frontend",
               "478635e68978"
            ],
            "DriverOpts" : null,
            "IPv6Gateway" : "",
            "GlobalIPv6PrefixLen" : 0,
            "GlobalIPv6Address" : "",
            "IPPrefixLen" : 16,
            "IPAddress" : "172.20.0.6",
            "MacAddress" : "02:42:ac:14:00:06"
         }
      },
      "EndpointID" : "",
      "SecondaryIPv6Addresses" : null,
      "Ports" : {
         "80/tcp" : null
      },
      "Bridge" : "",
      "SecondaryIPAddresses" : null,
      "GlobalIPv6PrefixLen" : 0,
      "Gateway" : "",
      "SandboxID" : "5729fad301656be1c60294859d5595b55e448fb524d8b47579db1d27535a2d13",
      "LinkLocalIPv6PrefixLen" : 0,
      "SandboxKey" : "/var/run/docker/netns/5729fad30165"
   },
   "GraphDriver" : {
      "Data" : {
         "WorkDir" : "/var/lib/docker/overlay2/cf5a8b9b01c84bafceaf11e88416a7ae3adf3135a39d4d7da20ea04c3cd6da5b/work",
         "UpperDir" : "/var/lib/docker/overlay2/cf5a8b9b01c84bafceaf11e88416a7ae3adf3135a39d4d7da20ea04c3cd6da5b/diff",
         "LowerDir" : "/var/lib/docker/overlay2/cf5a8b9b01c84bafceaf11e88416a7ae3adf3135a39d4d7da20ea04c3cd6da5b-init/diff:/var/lib/docker/overlay2/277d211cbdb06ec2aa550568506295542f298d39725e903d48129388f4bec42a/diff:/var/lib/docker/overlay2/d84734f63710d47470d1e2ab701f84ae64bfeca3a7f99f1602ac1749147d191f/diff:/var/lib/docker/overlay2/ac0c0abbc694154bb481c1b23770d0001cba2bc7663361a1b5ad9cc63a8bfd55/diff:/var/lib/docker/overlay2/245be74b59686445dea8f9aa358b642d1e783c5a6839ce8711c1b5c6f52cdc17/diff:/var/lib/docker/overlay2/39c030b6fc5b919fef58d2ea5a9940ef0b846058b29e89fe94c023a00db60aa4/diff:/var/lib/docker/overlay2/1d8fe694a2f78fa95ecede1d03785fd9b6d3ca9fec1cd9967b90eaedaf0c0d68/diff:/var/lib/docker/overlay2/a237c554965e1bd3bd080cab9a1879da0b33fbada934dcb4c18aa5b883987ab9/diff:/var/lib/docker/overlay2/b5b24d0c631c6c9ea751cd55235449630758af093ff5d8809372b731e27b64b2/diff:/var/lib/docker/overlay2/5a37e1286fbf17cca7a9c60a4d54d050f0e01b97d3f68937986f6ef7ba36bd5a/diff:/var/lib/docker/overlay2/b3e7e1925a285fdc92643f487200e9a37f16c1bc83244f307cd6b8910fe3144a/diff:/var/lib/docker/overlay2/83367e6f759b3154d825b23b43cf9bcc0c28b5deb1c6a9d62e61e3f1c6ce927f/diff:/var/lib/docker/overlay2/0fe54cd62bcd18792f3f422a7c90bfa01cf8e8ecdf112b9f3517f027ec729000/diff",
         "MergedDir" : "/var/lib/docker/overlay2/cf5a8b9b01c84bafceaf11e88416a7ae3adf3135a39d4d7da20ea04c3cd6da5b/merged"
      },
      "Name" : "overlay2"
   },
   "Path" : "runsvdir",
   "Id" : "478635e689785f6fab1866a538cc54bb4a006e309d8b9d44f7eaeff96ac56707",
   "Args" : [
      "-P",
      "/etc/service"
   ],
   "Driver" : "overlay2",
   "Image" : "sha256:8dc648ba876cfacbf7d078d6db86dfedd5574c85ac53d894a2d316b8d033ee16",
   "HostsPath" : "/var/lib/docker/containers/478635e689785f6fab1866a538cc54bb4a006e309d8b9d44f7eaeff96ac56707/hosts",
   "HostConfig" : {
      "RestartPolicy" : {
         "Name" : "",
         "MaximumRetryCount" : 0
      },
      "BlkioDeviceWriteIOps" : null,
      "CpuRealtimeRuntime" : 0,
      "MemoryReservation" : 0,
      "LogConfig" : {
         "Config" : {},
         "Type" : "json-file"
      },
      "CpusetCpus" : "",
      "Devices" : null,
      "ConsoleSize" : [
         0,
         0
      ],
      "PortBindings" : {},
      "BlkioDeviceReadIOps" : null,
      "CpuShares" : 0,
      "NanoCpus" : 0,
      "UsernsMode" : "",
      "Privileged" : false,
      "CpuPeriod" : 0,
      "PidMode" : "",
      "CpuPercent" : 0,
      "SecurityOpt" : null,
      "Isolation" : "",
      "MemorySwap" : 0,
      "BlkioDeviceReadBps" : null,
      "CapAdd" : null,
      "OomScoreAdj" : 0,
      "CpuCount" : 0,
      "ShmSize" : 67108864,
      "BlkioWeightDevice" : null,
      "DeviceCgroupRules" : null,
      "UTSMode" : "",
      "Ulimits" : null,
      "Cgroup" : "",
      "BlkioWeight" : 0,
      "PublishAllPorts" : false,
      "CpuRealtimePeriod" : 0,
      "KernelMemory" : 0,
      "ContainerIDFile" : "",
      "DiskQuota" : 0,
      "OomKillDisable" : false,
      "CapDrop" : null,
      "CpusetMems" : "",
      "CgroupParent" : "",
      "ReadonlyPaths" : [
         "/proc/bus",
         "/proc/fs",
         "/proc/irq",
         "/proc/sys",
         "/proc/sysrq-trigger"
      ],
      "Runtime" : "runc",
      "AutoRemove" : false,
      "MaskedPaths" : [
         "/proc/asound",
         "/proc/acpi",
         "/proc/kcore",
         "/proc/keys",
         "/proc/latency_stats",
         "/proc/timer_list",
         "/proc/timer_stats",
         "/proc/sched_debug",
         "/proc/scsi",
         "/sys/firmware"
      ],
      "Links" : null,
      "ReadonlyRootfs" : false,
      "DnsOptions" : null,
      "Memory" : 0,
      "Dns" : null,
      "IpcMode" : "shareable",
      "VolumeDriver" : "",
      "VolumesFrom" : [],
      "GroupAdd" : null,
      "DnsSearch" : null,
      "NetworkMode" : "project_default",
      "BlkioDeviceWriteBps" : null,
      "IOMaximumIOps" : 0,
      "Binds" : [
         "/home/gregoire/dev/simon.project.io/project-com:/var/www:cached"
      ],
      "CpuQuota" : 0,
      "IOMaximumBandwidth" : 0,
      "ExtraHosts" : null,
      "PidsLimit" : 0,
      "MemorySwappiness" : null
   },
   "RestartCount" : 0,
   "Platform" : "linux",
   "ProcessLabel" : "",
   "HostnamePath" : "/var/lib/docker/containers/478635e689785f6fab1866a538cc54bb4a006e309d8b9d44f7eaeff96ac56707/hostname",
   "ResolvConfPath" : "/var/lib/docker/containers/478635e689785f6fab1866a538cc54bb4a006e309d8b9d44f7eaeff96ac56707/resolv.conf"
}

[lmjhs]

Same here.

It appears the problem is because the Ports section inside NetworkSettings is returning null as it's value but the code is expecting to handle an array.

{ "NetworkSettings" : { "Ports" : { "80/tcp": null } } }

A simple check to see if it is an array fixes the problem but maybe there is an inconsistency with the docker API?