wangbo
7c142f5960
阿里云 OSS 的 S3 兼容层要求 virtual-hosted addressing，且 boto3 需要使用 Signature V2。本提交为 Barman 的归档、备份、保留与恢复统一挂载 AWS 配置，并将实际 WAL 归档和近期全备设为切换硬门禁。 同时补充 CNPG/etcdutl 固定版本安装、显式主库切换、三节点逐台停机、OSS 快照下载校验与远端临时 Secret 清理。已通过 ShellCheck、Kustomize、服务端 dry-run、迁移测试、发布脚本测试、敏感信息扫描及生产 precutover 验收。
46 lines
1.6 KiB
Bash
Executable File
46 lines
1.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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script_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
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# shellcheck source=scripts/cluster/common.sh
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source "$script_dir/common.sh"
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target_primary=${1:-}
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[[ $target_primary =~ ^easyai-postgres-[12]$ ]] || {
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echo 'usage: promote-cnpg-primary.sh easyai-postgres-{1|2}' >&2
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exit 64
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}
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load_cluster_env
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cluster_ssh "$CLUSTER_NINGBO_HOST" bash -s -- "$target_primary" <<'REMOTE'
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set -euo pipefail
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target_primary=$1
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kubectl='k3s kubectl'
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command -v kubectl-cnpg >/dev/null
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[[ $($kubectl get pod "$target_primary" -n easyai \
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-o jsonpath='{.metadata.labels.cnpg\.io/cluster}') == easyai-postgres ]]
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current_primary=$($kubectl get cluster easyai-postgres -n easyai \
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-o jsonpath='{.status.currentPrimary}')
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if [[ $current_primary != "$target_primary" ]]; then
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$kubectl cnpg promote easyai-postgres "$target_primary" -n easyai
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fi
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for _ in $(seq 1 120); do
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current_primary=$($kubectl get cluster easyai-postgres -n easyai \
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-o jsonpath='{.status.currentPrimary}')
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ready_instances=$($kubectl get cluster easyai-postgres -n easyai \
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-o jsonpath='{.status.readyInstances}')
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if [[ $current_primary == "$target_primary" && $ready_instances == 2 ]]; then
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synchronous_replicas=$($kubectl exec -n easyai "$current_primary" -c postgres -- \
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psql -X -U postgres -d postgres -At -c \
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"SELECT count(*) FROM pg_stat_replication WHERE sync_state IN ('sync','quorum');")
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if [[ $synchronous_replicas == 1 ]]; then
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echo "cnpg_primary_promotion=PASS primary=$current_primary synchronous_replicas=1"
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exit 0
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fi
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fi
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sleep 3
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done
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echo "CNPG did not converge on target primary: $target_primary" >&2
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exit 1
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REMOTE
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