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79 lines
1.8 KiB
Bash
79 lines
1.8 KiB
Bash
#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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#
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# Author: Hari Sekhon
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# Date: 2020-11-18 11:09:30 +0000 (Wed, 18 Nov 2020)
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#
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# https://github.com/HariSekhon/bash-tools
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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# https://www.linkedin.com/in/HariSekhon
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#
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set -euo pipefail
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[ -n "${DEBUG:-}" ] && set -x
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srcdir="$(dirname "${BASH_SOURCE[0]}")"
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# shellcheck disable=SC1090,SC1091
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. "$srcdir/lib/utils.sh"
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# shellcheck disable=SC1090
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# not using anything from here directly
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#. "$srcdir/lib/kubernetes.sh"
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# shellcheck disable=SC2034,SC2154
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usage_description="
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Runs kustomize build, precreates any namespaces, prompts you with a diff to the changes, and then applies if you accept the prompt
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Must be run from the Kustomize directory
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If a kubectl context is given as an arg, uses adjacent kubectl.sh to prevent race conditions, see kubectl.sh for more details
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"
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# used by usage() in lib/utils.sh
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# shellcheck disable=SC2034
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usage_args="<kubectl_context> <kubectl_options>"
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help_usage "$@"
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kubectl=(kubectl)
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context="${1:-}"
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shift || :
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if [ -n "$context" ]; then
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kubectl=("$srcdir/kubectl.sh" "$context")
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fi
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echo "Deploying K8s configs from directory $PWD"
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echo
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yaml="$(kustomize build)"
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echo "Pre-creating any namespaces so that diff can succeed"
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"$srcdir/kubectl_create_namespaces.sh" <<< "$yaml"
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echo "Diff from live running cluster:"
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echo
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if "${kubectl[@]}" diff -f - <<< "$yaml"; then
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echo "No changes to deploy"
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exit 0
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fi
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echo
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read -r -p "Deploy the above changes? (y/N) " answer
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shopt -s nocasematch
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if [[ ! "$answer" =~ ^y|yes$ ]]; then
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echo "Aborting..."
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exit 1
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fi
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shopt -u nocasematch
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echo
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echo
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"${kubectl[@]}" apply -f - "$@" <<< "$yaml"
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