fukuops/scripts/update-argo.sh

129 lines
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Executable file

#!/usr/bin/env bash
check_kubectl() {
if ! command -v kubectl &>/dev/null; then
echo "Error: kubectl is not installed or not in PATH" >&2
exit 1
fi
log_info "kubectl found at $(command -v kubectl)"
}
VERBOSE=0
log_debug() { [[ $VERBOSE -ge 3 ]] && echo "[DEBUG] $*" || true; }
log_verbose() { [[ $VERBOSE -ge 2 ]] && echo "[VERBOSE] $*" || true; }
log_info() { [[ $VERBOSE -ge 1 ]] && echo "[INFO] $*" || true; }
log_error() { echo "[ERROR] $*" >&2; }
usage() {
cat <<EOF
Usage: $(basename "$0") [OPTIONS] [VERSION]
Upgrade ArgoCD to a new version. Requires an existing ArgoCD installation.
Examples:
$(basename "$0") # queries the current argo version and tries to update to the immediate newest version
$(basename "$0") v4.3.0 # incrementally update to target version
Options:
-h, --help Show this help message
--dry-run Show what would be done without making changes
-v Verbose output (info level)
-vv More verbose output (info + verbose level)
-vvv Debug output (all log levels)
EOF
}
DRY_RUN=false
while [[ $# -gt 0 ]]; do
case "$1" in
-h|--help)
usage
exit 0
;;
--dry-run)
DRY_RUN=true
shift
;;
-v|-vv|-vvv)
case "$1" in
-v) VERBOSE=1 ;;
-vv) VERBOSE=2 ;;
-vvv) VERBOSE=3 ;;
esac
shift
;;
-*)
echo "Error: Unknown option: $1" >&2
usage >&2
exit 1
;;
*)
TARGET_VERSION="$1"
shift
;;
esac
done
log_debug "Script started with target version: ${TARGET_VERSION:-auto}"
check_kubectl
log_info "Checking current kubectl context"
CURRENT_CONTEXT=$(kubectl config current-context 2>/dev/null)
log_verbose "Current context: $CURRENT_CONTEXT"
log_info "Checking for ArgoCD installation"
if ! kubectl get ns argocd &>/dev/null; then
log_error "ArgoCD namespace not found. This script only upgrades existing installations."
exit 1
fi
log_verbose "ArgoCD namespace found"
log_info "Checking current ArgoCD version"
CURRENT_VERSION=$(kubectl get deployment argocd-server -n argocd -o jsonpath='{.spec.template.spec.containers[0].image}' 2>/dev/null)
if [[ -n "$CURRENT_VERSION" ]]; then
CURRENT_VERSION=$(echo "$CURRENT_VERSION" | sed 's/.*argocd:v\?//' | tr -d ' \n')
if [[ -n "$CURRENT_VERSION" ]]; then
CURRENT_VERSION="${CURRENT_VERSION#v}"
log_verbose "Current ArgoCD version: $CURRENT_VERSION"
else
log_error "Could not extract ArgoCD version from image: $CURRENT_VERSION"
exit 1
fi
fi
if [[ -z "$TARGET_VERSION" ]]; then
log_info "No target version specified, querying for latest version"
log_verbose "Fetching latest release from GitHub"
LATEST_VERSION=$(curl -s https://api.github.com/repos/argoproj/argo-cd/releases/latest | grep -oP '"tag_name":\s*"\K[^"]+' | sed 's/^v//')
if [[ -n "$LATEST_VERSION" ]]; then
log_verbose "Latest version available: $LATEST_VERSION"
TARGET_VERSION="$LATEST_VERSION"
else
echo "Error: Could not fetch latest version" >&2
exit 1
fi
fi
log_info "Target version: $TARGET_VERSION"
log_debug "Determining update path from $CURRENT_VERSION to $TARGET_VERSION"
log_info "Applying ArgoCD manifests"
log_verbose "Downloading manifest from https://raw.githubusercontent.com/argoproj/argo-cd/v${TARGET_VERSION}/manifests/install.yaml"
curl -sLO "https://raw.githubusercontent.com/argoproj/argo-cd/v${TARGET_VERSION}/manifests/install.yaml"
log_debug "Applying manifest with kubectl"
if [[ "$DRY_RUN" == true ]]; then
log_verbose "Dry-run mode: would apply manifest"
kubectl apply -n argocd -f install.yaml --dry-run=client
else
kubectl apply -n argocd -f install.yaml
fi
log_verbose "Cleaning up downloaded manifest"
rm -f install.yaml
log_info "Update to ArgoCD $TARGET_VERSION initiated"