github.com/containers/podman/v5@v5.1.0-rc1/hack/podman-socat (about)

     1  #!/bin/bash -e
     2  # Execute podman while capturing the API stream
     3  #
     4  # Script will run an instance of podman sand-boxed, the API stream will be captured and then formatted for readability.
     5  
     6  if [[ $(id -u) != 0 ]]; then
     7      echo >&2 "$0 must be run as root."
     8      exit 2
     9  fi
    10  
    11  if ! command -v socat >/dev/null 2>&1; then
    12      echo 1>&2 "socat not found on PATH"
    13  fi
    14  
    15  PODMAN=${PODMAN:-podman}
    16  if ! command -v "$PODMAN" >/dev/null 2>&1; then
    17      echo 1>&2 "$PODMAN not found on PATH"
    18  fi
    19  
    20  function usage() {
    21      echo 1>&2 $0 '[-v] [-h]'
    22  }
    23  
    24  while getopts "vh" arg; do
    25      case $arg in
    26      v)
    27          VERBOSE='-v'
    28          export PODMAN_LOG_LEVEL=debug
    29          ;;
    30      h)
    31          usage
    32          exit 0
    33          ;;
    34      \?)
    35          usage
    36          exit 2
    37          ;;
    38      esac
    39  done
    40  shift $((OPTIND - 1))
    41  
    42  function cleanup() {
    43      set +xeuo pipefail
    44      rm -r "$1"
    45      kill -9 $REAP_PIDS
    46  
    47      sed -e 's/^> /\nClient Request> /' -e 's/^< /\nServer Response< /' -i /tmp/podman-socat.log
    48  }
    49  
    50  # Create temporary directory for storage
    51  export TMPDIR=$(mktemp -d /tmp/podman.XXXXXXXXXX)
    52  trap "cleanup $TMPDIR" EXIT
    53  
    54  # Need locations to store stuff
    55  mkdir -p "${TMPDIR}"/{podman,crio,crio-run,cni/net.d,ctnr,tunnel}
    56  
    57  export CONTAINERS_REGISTRIES_CONF=${TMPDIR}/registry.conf
    58  cat >"$CONTAINERS_REGISTRIES_CONF" <<-EOT
    59    [registries.search]
    60      registries = ['docker.io']
    61    [registries.insecure]
    62      registries = []
    63    [registries.block]
    64      registries = []
    65  EOT
    66  
    67  export CNI_CONFIG_PATH=${TMPDIR}/cni/net.d
    68  cat >"$CNI_CONFIG_PATH"/87-podman-bridge.conflist <<-EOT
    69  {
    70    "cniVersion": "0.3.0",
    71    "name": "podman",
    72    "plugins": [{
    73        "type": "bridge",
    74        "bridge": "cni0",
    75        "isGateway": true,
    76        "ipMasq": true,
    77        "ipam": {
    78          "type": "host-local",
    79          "subnet": "10.88.0.0/16",
    80          "routes": [{
    81            "dst": "0.0.0.0/0"
    82          }]
    83        }
    84      },
    85      {
    86        "type": "portmap",
    87        "capabilities": {
    88          "portMappings": true
    89        }
    90      }
    91    ]
    92  }
    93  EOT
    94  
    95  PODMAN_ARGS="--storage-driver=vfs \
    96    --root=${TMPDIR}/crio \
    97    --runroot=${TMPDIR}/crio-run \
    98    --network-config-dir=$CNI_CONFIG_PATH \
    99    --cgroup-manager=systemd \
   100    "
   101  if [[ -n $VERBOSE ]]; then
   102      PODMAN_ARGS="$PODMAN_ARGS --log-level=$PODMAN_LOG_LEVEL --syslog=true"
   103  fi
   104  PODMAN="$PODMAN $PODMAN_ARGS"
   105  
   106  PODMAN_HOST="${TMPDIR}/podman/podman-socat.sock"
   107  SOCAT_HOST="${TMPDIR}/podman/podman.sock"
   108  
   109  cat <<-EOT
   110  Podman service running at unix://$SOCAT_HOST
   111  See /tmp/podman-socat.log for API stream capture
   112  See /tmp/podman-service.log for service logging
   113  
   114  usage: sudo bin/podman-remote --url unix://$SOCAT_HOST images
   115  
   116  ^C to exit
   117  EOT
   118  
   119  $PODMAN system service --timeout=0 "unix://$PODMAN_HOST" >/tmp/podman-service.log 2>&1 &
   120  REAP_PIDS=$!
   121  
   122  socat -v "UNIX-LISTEN:$SOCAT_HOST",fork,reuseaddr,unlink-early "UNIX-CONNECT:$PODMAN_HOST" >/tmp/podman-socat.log 2>&1