Installing Redis with Helm 3 (Note: this will also bootstrap Helm 3 on Mac)

helm3_redis_install.sh

#!/bin/bash -ex

#
# Magic Helm 3.0.0-alpha1 macOS install script here:
# 	https://gist.github.com/jdolitsky/0ec804b09f24a24b05acb681f01903c9
# --->
GIST_ID="${GIST_SLUG:-jdolitsky/0ec804b09f24a24b05acb681f01903c9}"
GIST_FILE="${GIST_FILE:-install_helm3alpha1_mac.sh}"
GIST_URL="https://gist.githubusercontent.com/${GIST_ID}/raw/${GIST_FILE}"

#
# Helm chart we want to install - ex.) Bitnami Redis hosted on bundle.bar
# --->
CHART_REF="${CHART_REF:-bundle.bar/helm/hub/bitnami/redis:7.1.1-alpha1}"
CHART_DIR="$(echo "${CHART_REF}"| awk -F: '{ print $1 }' | xargs basename)"

#
# Helm release name and namespace
# --->
RELEASE_NAME="${RELEASE_NAME:-testredis}"
RELEASE_NAMESPACE="${RELEASE_NAMESPACE:-default}"

#
# Install Helm 3 to /tmp/helm3/bin/helm if not exists (and ask for permission)
# --->
if [[ ! -x "/tmp/helm3/bin/helm" ]]; then
    set +x
    echo "Helm 3 not installed to /tmp/helm3/bin/helm."
    if [[ "$(uname)" != "Darwin" ]]; then
        echo "Please see latest release: https://github.com/helm/helm/releases/tag/v3.0.0-alpha.1"
        exit 1
    fi
    echo -en "Going to download and execute ${GIST_URL}\nThis ok? (type \"yes\"): "
    read answer
    if [[ "$answer" != "yes" ]]; then
        exit 1
    fi
    curl "${GIST_URL}" | bash
    set -x
fi

#
# Activate Helm 3
# --->
export HELM_HOME="/tmp/helm3"
export PATH="${HELM_HOME}/bin:${PATH}"

#
# Download remote chart
# --->
helm chart pull "${CHART_REF}"

#
# List all charts in cache
# --->
helm chart list

#
# Export chart to local directory
# --->
rm -rf "${CHART_DIR}"
helm chart export "${CHART_REF}"

#
# Install chart into namespace
# --->
helm upgrade --install --namespace="${RELEASE_NAMESPACE}" "${RELEASE_NAME}" "${CHART_DIR}"

#
# List all releases in namespace
# --->
helm list --namespace="${RELEASE_NAMESPACE}"

One-liner to run this:

curl https://gist.githubusercontent.com/jdolitsky/28dbc0fd57f5d8662dff2959c1390ca3/raw/helm3_redis_install.sh | bash