|
| 1 | +package grafana |
| 2 | + |
| 3 | +import ( |
| 4 | + "errors" |
| 5 | + "fmt" |
| 6 | + "log" |
| 7 | + "strconv" |
| 8 | + "strings" |
| 9 | + |
| 10 | + gapi "github.com/grafana/grafana-api-golang-client" |
| 11 | + "github.com/hashicorp/terraform/helper/schema" |
| 12 | +) |
| 13 | + |
| 14 | +type TeamMember struct { |
| 15 | + ID int64 |
| 16 | + Email string |
| 17 | +} |
| 18 | + |
| 19 | +type MemberChange struct { |
| 20 | + Type ChangeMemberType |
| 21 | + Member TeamMember |
| 22 | +} |
| 23 | + |
| 24 | +type ChangeMemberType int8 |
| 25 | + |
| 26 | +const ( |
| 27 | + AddMember ChangeMemberType = iota |
| 28 | + RemoveMember |
| 29 | +) |
| 30 | + |
| 31 | +func ResourceTeam() *schema.Resource { |
| 32 | + return &schema.Resource{ |
| 33 | + Create: CreateTeam, |
| 34 | + Read: ReadTeam, |
| 35 | + Update: UpdateTeam, |
| 36 | + Delete: DeleteTeam, |
| 37 | + Exists: ExistsTeam, |
| 38 | + Importer: &schema.ResourceImporter{ |
| 39 | + State: ImportTeam, |
| 40 | + }, |
| 41 | + |
| 42 | + Schema: map[string]*schema.Schema{ |
| 43 | + "team_id": { |
| 44 | + Type: schema.TypeInt, |
| 45 | + Computed: true, |
| 46 | + }, |
| 47 | + "name": { |
| 48 | + Type: schema.TypeString, |
| 49 | + Required: true, |
| 50 | + }, |
| 51 | + "email": { |
| 52 | + Type: schema.TypeString, |
| 53 | + Optional: true, |
| 54 | + }, |
| 55 | + "members": { |
| 56 | + Type: schema.TypeList, |
| 57 | + Optional: true, |
| 58 | + Elem: &schema.Schema{ |
| 59 | + Type: schema.TypeString, |
| 60 | + }, |
| 61 | + }, |
| 62 | + }, |
| 63 | + } |
| 64 | +} |
| 65 | + |
| 66 | +func CreateTeam(d *schema.ResourceData, meta interface{}) error { |
| 67 | + client := meta.(*gapi.Client) |
| 68 | + name := d.Get("name").(string) |
| 69 | + email := d.Get("email").(string) |
| 70 | + teamID, err := client.AddTeam(name, email) |
| 71 | + if err != nil { |
| 72 | + return err |
| 73 | + } |
| 74 | + |
| 75 | + d.SetId(strconv.FormatInt(teamID, 10)) |
| 76 | + return UpdateMembers(d, meta) |
| 77 | +} |
| 78 | + |
| 79 | +func ReadTeam(d *schema.ResourceData, meta interface{}) error { |
| 80 | + client := meta.(*gapi.Client) |
| 81 | + teamID, _ := strconv.ParseInt(d.Id(), 10, 64) |
| 82 | + resp, err := client.Team(teamID) |
| 83 | + if err != nil && strings.HasPrefix(err.Error(), "status: 404") { |
| 84 | + log.Printf("[WARN] removing team %s from state because it no longer exists in grafana", d.Id()) |
| 85 | + d.SetId("") |
| 86 | + return nil |
| 87 | + } |
| 88 | + if err != nil { |
| 89 | + return err |
| 90 | + } |
| 91 | + d.Set("name", resp.Name) |
| 92 | + d.Set("email", resp.Email) |
| 93 | + if err := ReadMembers(d, meta); err != nil { |
| 94 | + return err |
| 95 | + } |
| 96 | + return nil |
| 97 | +} |
| 98 | + |
| 99 | +func UpdateTeam(d *schema.ResourceData, meta interface{}) error { |
| 100 | + client := meta.(*gapi.Client) |
| 101 | + teamID, _ := strconv.ParseInt(d.Id(), 10, 64) |
| 102 | + if d.HasChange("name") || d.HasChange("email") { |
| 103 | + name := d.Get("name").(string) |
| 104 | + email := d.Get("email").(string) |
| 105 | + err := client.UpdateTeam(teamID, name, email) |
| 106 | + if err != nil { |
| 107 | + return err |
| 108 | + } |
| 109 | + } |
| 110 | + return UpdateMembers(d, meta) |
| 111 | +} |
| 112 | + |
| 113 | +func DeleteTeam(d *schema.ResourceData, meta interface{}) error { |
| 114 | + client := meta.(*gapi.Client) |
| 115 | + teamID, _ := strconv.ParseInt(d.Id(), 10, 64) |
| 116 | + return client.DeleteTeam(teamID) |
| 117 | +} |
| 118 | + |
| 119 | +func ExistsTeam(d *schema.ResourceData, meta interface{}) (bool, error) { |
| 120 | + client := meta.(*gapi.Client) |
| 121 | + teamID, _ := strconv.ParseInt(d.Id(), 10, 64) |
| 122 | + _, err := client.Team(teamID) |
| 123 | + if err != nil && strings.HasPrefix(err.Error(), "status: 404") { |
| 124 | + return false, nil |
| 125 | + } |
| 126 | + if err != nil { |
| 127 | + return false, err |
| 128 | + } |
| 129 | + return true, err |
| 130 | +} |
| 131 | + |
| 132 | +func ImportTeam(d *schema.ResourceData, meta interface{}) ([]*schema.ResourceData, error) { |
| 133 | + exists, err := ExistsTeam(d, meta) |
| 134 | + if err != nil || !exists { |
| 135 | + return nil, errors.New(fmt.Sprintf("Error: Unable to import Grafana Team: %s.", err)) |
| 136 | + } |
| 137 | + err = ReadTeam(d, meta) |
| 138 | + if err != nil { |
| 139 | + return nil, err |
| 140 | + } |
| 141 | + return []*schema.ResourceData{d}, nil |
| 142 | +} |
| 143 | + |
| 144 | +func ReadMembers(d *schema.ResourceData, meta interface{}) error { |
| 145 | + client := meta.(*gapi.Client) |
| 146 | + teamID, _ := strconv.ParseInt(d.Id(), 10, 64) |
| 147 | + teamMembers, err := client.TeamMembers(teamID) |
| 148 | + if err != nil { |
| 149 | + return err |
| 150 | + } |
| 151 | + memberSlice := []string{} |
| 152 | + for _, teamMember := range teamMembers { |
| 153 | + memberSlice = append(memberSlice, teamMember.Email) |
| 154 | + } |
| 155 | + d.Set("members", memberSlice) |
| 156 | + |
| 157 | + return nil |
| 158 | +} |
| 159 | + |
| 160 | +func UpdateMembers(d *schema.ResourceData, meta interface{}) error { |
| 161 | + stateMembers, configMembers, err := collectMembers(d) |
| 162 | + if err != nil { |
| 163 | + return err |
| 164 | + } |
| 165 | + //compile the list of differences between current state and config |
| 166 | + changes := memberChanges(stateMembers, configMembers) |
| 167 | + //retrieves the corresponding user IDs based on the email provided |
| 168 | + changes, err = addMemberIdsToChanges(meta, changes) |
| 169 | + if err != nil { |
| 170 | + return err |
| 171 | + } |
| 172 | + teamID, _ := strconv.ParseInt(d.Id(), 10, 64) |
| 173 | + //now we can make the corresponding updates so current state matches config |
| 174 | + return applyMemberChanges(meta, teamID, changes) |
| 175 | +} |
| 176 | + |
| 177 | +func collectMembers(d *schema.ResourceData) (map[string]TeamMember, map[string]TeamMember, error) { |
| 178 | + stateMembers, configMembers := make(map[string]TeamMember), make(map[string]TeamMember) |
| 179 | + |
| 180 | + // Get the lists of team members read in from Grafana state (old) and configured (new) |
| 181 | + state, config := d.GetChange("members") |
| 182 | + for _, u := range state.([]interface{}) { |
| 183 | + login := u.(string) |
| 184 | + // Sanity check that a member isn't specified twice within a team |
| 185 | + if _, ok := stateMembers[login]; ok { |
| 186 | + return nil, nil, errors.New(fmt.Sprintf("Error: Team Member '%s' cannot be specified multiple times.", login)) |
| 187 | + } |
| 188 | + stateMembers[login] = TeamMember{0, login} |
| 189 | + } |
| 190 | + for _, u := range config.([]interface{}) { |
| 191 | + login := u.(string) |
| 192 | + // Sanity check that a member isn't specified twice within a team |
| 193 | + if _, ok := configMembers[login]; ok { |
| 194 | + return nil, nil, errors.New(fmt.Sprintf("Error: Team Member '%s' cannot be specified multiple times.", login)) |
| 195 | + } |
| 196 | + configMembers[login] = TeamMember{0, login} |
| 197 | + } |
| 198 | + |
| 199 | + return stateMembers, configMembers, nil |
| 200 | +} |
| 201 | + |
| 202 | +func memberChanges(stateMembers, configMembers map[string]TeamMember) []MemberChange { |
| 203 | + var changes []MemberChange |
| 204 | + for _, user := range configMembers { |
| 205 | + _, ok := stateMembers[user.Email] |
| 206 | + if !ok { |
| 207 | + // Member doesn't exist in Grafana's state for the team, should be added. |
| 208 | + changes = append(changes, MemberChange{AddMember, user}) |
| 209 | + continue |
| 210 | + } |
| 211 | + } |
| 212 | + for _, user := range stateMembers { |
| 213 | + if _, ok := configMembers[user.Email]; !ok { |
| 214 | + // Member exists in Grafana's state for the team, but isn't |
| 215 | + // present in the team configuration, should be removed. |
| 216 | + changes = append(changes, MemberChange{RemoveMember, user}) |
| 217 | + } |
| 218 | + } |
| 219 | + return changes |
| 220 | +} |
| 221 | + |
| 222 | +func addMemberIdsToChanges(meta interface{}, changes []MemberChange) ([]MemberChange, error) { |
| 223 | + client := meta.(*gapi.Client) |
| 224 | + gUserMap := make(map[string]int64) |
| 225 | + gUsers, err := client.Users() |
| 226 | + if err != nil { |
| 227 | + return nil, err |
| 228 | + } |
| 229 | + for _, u := range gUsers { |
| 230 | + gUserMap[u.Email] = u.Id |
| 231 | + } |
| 232 | + var output []MemberChange |
| 233 | + |
| 234 | + for _, change := range changes { |
| 235 | + id, ok := gUserMap[change.Member.Email] |
| 236 | + if !ok { |
| 237 | + return nil, errors.New(fmt.Sprintf("Error adding user %s. User does not exist in Grafana.", change.Member.Email)) |
| 238 | + } |
| 239 | + |
| 240 | + change.Member.ID = id |
| 241 | + output = append(output, change) |
| 242 | + } |
| 243 | + return output, nil |
| 244 | +} |
| 245 | + |
| 246 | +func applyMemberChanges(meta interface{}, teamId int64, changes []MemberChange) error { |
| 247 | + var err error |
| 248 | + client := meta.(*gapi.Client) |
| 249 | + for _, change := range changes { |
| 250 | + u := change.Member |
| 251 | + switch change.Type { |
| 252 | + case AddMember: |
| 253 | + err = client.AddTeamMember(teamId, u.ID) |
| 254 | + case RemoveMember: |
| 255 | + err = client.RemoveMemberFromTeam(teamId, u.ID) |
| 256 | + } |
| 257 | + if err != nil { |
| 258 | + return err |
| 259 | + } |
| 260 | + } |
| 261 | + return nil |
| 262 | +} |
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