Signed-off-by: Breezewish <breezewish@pingcap.com>

Signed-off-by: qupeng <qupeng@pingcap.com>

Signed-off-by: Calvin Weng <wenghao@pingcap.com>

This PR make TiKV only listens to given port when it's started. Note that listening to port before everything is prepared is a mistake and can lead to unexpected bugs like tikv#4224.
Binding port before server is started is required by our tests to avoid port conflict. So this PR delays binding port only when it's configured.

Signed-off-by: Breezewish <breezewish@pingcap.com>

Signed-off-by: zhangjinpeng1987 <zhangjinpeng@pingcap.com>

Signed-off-by: Jay Lee <busyjaylee@gmail.com>

Signed-off-by: Calvin Weng <wenghao@pingcap.com>

* support encryption for data store in disk
Signed-off-by: zhangjinpeng1987 <zhangjinpeng@pingcap.com>
* update rocksdb
Signed-off-by: zhangjinpeng1987 <zhangjinpeng@pingcap.com>
* create encypted env from cipher file
Signed-off-by: zhangjinpeng1987 <zhangjinpeng@pingcap.com>
* trim head and tail space for cipher file
Signed-off-by: zhangjinpeng1987 <zhangjinpeng@pingcap.com>
* use the kv_count instead of the file size to indicate if the sst file is empty
Signed-off-by: zhangjinpeng1987 <zhangjinpeng@pingcap.com>
* load_latest_options use specified env
Signed-off-by: zhangjinpeng1987 <zhangjinpeng@pingcap.com>
* tikv-ctl: use encrypted env
Signed-off-by: zhangjinpeng1987 <zhangjinpeng@pingcap.com>
* update kv_count for plain file cfs
Signed-off-by: zhangjinpeng1987 <zhangjinpeng@pingcap.com>
* tikv-ctl support cipher-file
Signed-off-by: zhangjinpeng1987 <zhangjinpeng@pingcap.com>
* add encrypted env for snapshot tests
Signed-off-by: zhangjinpeng1987 <zhangjinpeng@pingcap.com>
* address comments
Signed-off-by: zhangjinpeng1987 <zhangjinpeng@pingcap.com>
* address comments
Signed-off-by: zhangjinpeng1987 <zhangjinpeng@pingcap.com>

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