Installation and offline dist improvements

Improve error message during offline installation, if Python3 or pip3
are missing.

Also due to native dependencies, make the offline package Linux specific
 adding the necessary checks.

Finally, update the installation instructions to use Python3 best
practices.

Relates elastic#1032
Closes elastic#1034

RELEASE.md

@@ -30,6 +30,7 @@ Please execute the following tasks after `make release` has finished:
 
 ### Preconditions
 
+* This procedure requires a Linux workstation as the offline installation references platform specific artifacts. A Vagrant box will work fine.
 * Ensure that the master branch is checked out and your working copy is clean (run `git status`).
 * Ensure that integration tests can run to completion successfully on your machine (run `make it`).
 * Ensure that the associated milestone on Github contains no open tickets (otherwise the release will fail).

docs/install.rst

@@ -33,9 +33,8 @@ Once ``pyenv`` is installed, install a compatible Python version::
     # see https://github.com/pyenv/pyenv/blob/master/COMMANDS.md#pyenv-global for details
     pyenv global 3.8.0
 
-    # Install pip3
-    curl -s https://bootstrap.pypa.io/get-pip.py -o get-pip.py
-    python3 get-pip.py --user
+    # Upgrade pip
+    python3 -m pip install --user --upgrade pip
 
 git
 ~~~
@@ -113,32 +112,19 @@ To find the JDK, Rally expects the environment variable ``JAVA_HOME`` to be set
 Installing Rally
 ----------------
 
-Simply install Rally with pip: ``pip3 install esrally``
-
-.. note::
-
-   Depending on your system setup you may need to prepend this command with ``sudo``.
+1. Ensure ``~/.local/bin`` is in your ``$PATH``.
+2. Install Rally: ``python3 -m pip install --user esrally``.
 
 If you get errors during installation, it is probably due to the installation of ``psutil`` which we use to gather system metrics like CPU utilization. Ensure that you have installed the Python development package as documented in the prerequisites section above.
 
-Non-sudo Install
-----------------
-
-If you don't want to use ``sudo`` when installing Rally, installation is still possible but a little more involved:
-
-1. Specify the ``--user`` option when installing Rally (step 2 above), so the command to be issued is: ``python3 setup.py develop --user``.
-2. Check the output of the install script or lookup the `Python documentation on the variable site.USER_BASE <https://docs.python.org/3/library/site.html#site.USER_BASE>`_ to find out where the script is located. On Linux, this is typically ``~/.local/bin``.
-
-You can now either add ``~/.local/bin`` to your path or invoke Rally via ``~/.local/bin/esrally`` instead of just ``esrally``.
-
 VirtualEnv Install
 ------------------
 
 You can also use Virtualenv to install Rally into an isolated Python environment without sudo.
 
-1. Set up a new virtualenv environment in a directory with ``virtualenv --python=python3 .``
+1. Set up a new virtualenv environment in a directory with ``python3 -m venv .``
 2. Activate the environment with ``source /path/to/virtualenv/dir/bin/activate``
-3. Install Rally with ``pip install esrally``
+3. Install Rally with ``python3 -m pip install esrally``
 
 Whenever you want to use Rally, run the activation script (step 2 above) first.  When you are done, simply execute ``deactivate`` in the shell to exit the virtual environment.
 
@@ -161,12 +147,12 @@ Offline Install
         This documentation is for the version of Rally currently under development. We do not provide offline installation packages for development versions.
         Were you looking for the `documentation of the latest stable version <//esrally.readthedocs.io/en/stable/>`_?
 
-If you are in a corporate environment where your servers do not have any access to the Internet, you can use Rally's offline installation package. Follow these steps to install Rally:
+If you are in a corporate environment using Linux servers that do not have any access to the Internet, you can use Rally's offline installation package. Follow these steps to install Rally:
 
 1. Install all prerequisites as documented above.
 2. Download the offline installation package for the `latest release <https://github.com/elastic/rally/releases/latest>`_ and copy it to the target machine(s).
-3. Decompress the installation package with ``tar -xzf esrally-dist-*.tar.gz``.
-4. Run the install script with ``sudo ./esrally-dist-*/install.sh``.
+3. Decompress the installation package with ``tar -xzf esrally-dist-linux-*.tar.gz``.
+4. Run the install script with ``sudo ./esrally-dist-linux-*/install.sh``.
 
 Next Steps
 ----------

release-checks.sh

@@ -21,6 +21,14 @@
 set -eu
 RELEASE_VERSION=$1
 
+KERNEL_NAME=$(uname -s)
+if [[ ${KERNEL_NAME} != *"Linux"* ]]
+then
+  echo "Error: release needs to be run on a Linux workstation but you are running on ${KERNEL_NAME}."
+  echo "Switch to a Linux workstation and try again."
+  exit 1
+fi
+
 # test number of parameters
 if [[ $# != 2 ]]
 then
@@ -44,12 +52,6 @@ then
     exit 1
 fi
 
-if [[ $(uname) == "Darwin" && -z "${GPG_TTY+set}" ]]
-then
-    echo "Error: to allow git to create signed commits on Mac OS you need to set \"export GPG_TTY=\$(tty)\"."
-    exit 1
-fi
-
 ORIGIN_URL=$(git remote get-url --push origin)
 if [[ ${ORIGIN_URL} != *"elastic/rally"* ]]
 then

scripts/offline-install.sh

@@ -31,12 +31,22 @@ then
     exit 1
 fi
 
+KERNEL_NAME=$(uname -s)
+if [[ ${KERNEL_NAME} != *"Linux"* ]]
+then
+  echo "Error: this script needs to be run on a Linux workstation but you are running on ${KERNEL_NAME}."
+  echo "Switch to a Linux workstation and try again."
+  exit 1
+fi
+
 readonly RALLY_VERSION=$1
 
 readonly WD=$(pwd)
 readonly RELATIVE_DOWNLOAD_DIR="esrally-dist-${RALLY_VERSION}"
 readonly ABSOLUTE_DOWNLOAD_DIR="${WD}/${RELATIVE_DOWNLOAD_DIR}"
 readonly ABSOLUTE_DOWNLOAD_BIN_DIR="${ABSOLUTE_DOWNLOAD_DIR}/bin"
+readonly PYTHON_INSTALL_LINK="https://esrally.readthedocs.io/en/stable/install.html#python"
+readonly PYTHON_ERROR_MSG="is required but not installed. Follow the instructions in ${PYTHON_INSTALL_LINK} and try again."
 
 SOURCE="${BASH_SOURCE[0]}"
 while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink
@@ -47,7 +57,7 @@ done
 SCRIPT_SRC_HOME="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
 
 function main {
-    local archive_name="esrally-dist-${RALLY_VERSION}.tar.gz"
+    local archive_name="esrally-dist-linux-${RALLY_VERSION}.tar.gz"
     local install_script_file="install.sh"
     local install_script="${ABSOLUTE_DOWNLOAD_DIR}/${install_script_file}"
 
@@ -84,8 +94,8 @@ SRC_HOME="\$( cd -P "\$( dirname "\$SOURCE" )" && pwd )"
 echo "Installing Rally ${RALLY_VERSION}..."
 
 # Check if mandatory prerequisites are installed
-command -v python3 >/dev/null 2>&1 || { echo >&2 "Python3 is required but not installed."; exit 1; }
-command -v pip3 >/dev/null 2>&1 || { echo >&2 "pip3 is required but not installed."; exit 1; }
+command -v python3 >/dev/null 2>&1 || { echo >&2 "Python3 ${PYTHON_ERROR_MSG}"; exit 1; }
+command -v pip3 >/dev/null 2>&1 || { echo >&2 "pip3 ${PYTHON_ERROR_MSG}"; exit 1; }
 
 pip3 install esrally==${RALLY_VERSION} --no-index --find-links file://\${SRC_HOME}/bin
 EOL