Matthew Stobbs
a78f001a41
- Make ipv4 reservations in kea by directly writing to the database - uses same configuration file as database configuration under the heading reservationV4
64 lines
1.4 KiB
Go
64 lines
1.4 KiB
Go
package postgres
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import (
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"context"
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"fmt"
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"git.staur.ca/stobbsm/kea-manage/ipv4/reservation"
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"git.staur.ca/stobbsm/kea-manage/lib/database"
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"github.com/jackc/pgx/v5"
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)
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type Postgres struct {
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connString string
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conn *pgx.Conn
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}
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// Open receives the host, port, username, password and database name of a postgresql
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// database, and manages connections to it.
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func Open(host, port, user, password, name string) *Postgres {
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var p = &Postgres{
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connString: fmt.Sprintf("postgres://%s:%s@%s:%s/%s", user, password, host, port, name),
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}
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return p
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}
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func (p *Postgres) connect(ctx context.Context) error {
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var err error
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p.conn, err = pgx.Connect(ctx, p.connString)
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return err
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}
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func (p *Postgres) close() {
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p.conn.Close(context.Background())
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}
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// InsertResV4 adds IPv4 reservations to the kea database
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func (p *Postgres) InsertResV4(r *reservation.ReservationV4) error {
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if err := p.connect(context.Background()); err != nil {
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return err
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}
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defer p.close()
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tx, err := p.conn.Begin(context.Background())
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if err != nil {
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return err
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}
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defer tx.Rollback(context.Background())
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ct, err := tx.Exec(context.Background(), insertIfNotExists, r.MacAddr, r.Type, r.SubnetID, r.Ipv4, r.Hostname)
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if err != nil {
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return err
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}
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if err = tx.Commit(context.Background()); err != nil {
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return err
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}
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if ct.RowsAffected() == 0 {
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return database.Exists
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}
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return nil
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}
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