k8s.io/kubernetes@v1.29.3/test/e2e_node/environment/setup_host.sh (about)

     1  #!/usr/bin/env bash
     2  
     3  # Copyright 2016 The Kubernetes Authors.
     4  #
     5  # Licensed under the Apache License, Version 2.0 (the "License");
     6  # you may not use this file except in compliance with the License.
     7  # You may obtain a copy of the License at
     8  #
     9  #     http://www.apache.org/licenses/LICENSE-2.0
    10  #
    11  # Unless required by applicable law or agreed to in writing, software
    12  # distributed under the License is distributed on an "AS IS" BASIS,
    13  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14  # See the License for the specific language governing permissions and
    15  # limitations under the License.
    16  
    17  # Script used to configure node e2e test hosts from gce base images.
    18  # DISCLAIMER: This script is not actively tested or maintained.  No guarantees that this will work
    19  # on any host environment.  Contributions encouraged!  Send PRs to pwittrock (github.com).
    20  #
    21  # At some point has successfully configured the following distros:
    22  # - ubuntu trusty
    23  # - containervm (no-op)
    24  # - rhel 7
    25  # - centos 7
    26  # - debian jessie
    27  
    28  # On a systemd environment, enable cpu and memory accounting for all processes by default.
    29  if [ -d /etc/systemd ]; then
    30    cat <<EOF >kubernetes-accounting.conf
    31  [Manager]
    32  DefaultCPUAccounting=yes
    33  DefaultMemoryAccounting=yes
    34  EOF
    35    sudo mkdir -p /etc/systemd/system.conf.d/
    36    sudo cp kubernetes-accounting.conf /etc/systemd/system.conf.d
    37    sudo systemctl daemon-reload
    38  fi
    39  
    40  # For coreos, disable updates
    41  if sudo systemctl status update-engine &>/dev/null; then
    42    sudo systemctl mask update-engine locksmithd
    43  fi
    44  
    45  # Fixup sudoers require tty
    46  if ! sudo grep -q "# Defaults    requiretty" /etc/sudoers; then
    47    sudo sed -i 's/Defaults    requiretty/# Defaults    requiretty/' /etc/sudoers
    48  fi
    49  
    50  # Install nsenter for ubuntu images
    51  if cat /etc/*-release | grep "ID=ubuntu"; then
    52    if ! which nsenter > /dev/null; then
    53       echo "Do not find nsenter. Install it."
    54       NSENTER_BUILD_DIR=$(mktemp -d /tmp/nsenter-build-XXXXXX)
    55       cd "$NSENTER_BUILD_DIR" || exit 1
    56       curl https://www.kernel.org/pub/linux/utils/util-linux/v2.31/util-linux-2.31.tar.gz | tar -zxf-
    57       sudo apt-get update
    58       sudo apt-get --yes install make
    59       sudo apt-get --yes install gcc
    60       cd util-linux-2.31 || exit 1
    61       ./configure --without-ncurses
    62       make nsenter
    63       sudo cp nsenter /usr/local/bin
    64       rm -rf "$NSENTER_BUILD_DIR"
    65     fi
    66  fi
    67  
    68  # Install docker
    69  if ! hash containerd 2>/dev/null; then
    70    echo "Please install containerd, see the getting started guide here: https://github.com/containerd/containerd/blob/main/docs/getting-started.md"
    71    echo "For a docker CLI replacement, we suggest nerdctl: https://github.com/containerd/nerdctl#install"
    72  fi
    73  
    74  # Allow jenkins access to docker
    75  id jenkins || sudo useradd jenkins -m
    76  sudo usermod -a -G docker jenkins
    77  
    78  # install lxc
    79  if ! cat /etc/*-release | grep "ID=debian"; then
    80    hash apt-get 2>/dev/null
    81    if [ $? -ne 1 ]; then
    82      sudo apt-get install lxc -y
    83      lxc-checkconfig
    84      sudo sed -i 's/GRUB_CMDLINE_LINUX="\(.*\)"/GRUB_CMDLINE_LINUX="\1 cgroup_enable=memory"/' /etc/default/grub
    85      sudo update-grub
    86    fi
    87  fi
    88  
    89  # delete init kubelet from containervm so that is doesn't startup
    90  if [ -f /etc/init.d/kubelet ]; then
    91    sudo rm /etc/init.d/kubelet
    92  fi