/
build_and_deployer.go
120 lines (95 loc) · 3.56 KB
/
build_and_deployer.go
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package engine
import (
"context"
"fmt"
"strings"
"github.com/windmilleng/tilt/internal/container"
"github.com/windmilleng/tilt/internal/store"
"github.com/windmilleng/tilt/internal/k8s"
"github.com/windmilleng/tilt/internal/logger"
"github.com/windmilleng/tilt/internal/model"
)
type BuildAndDeployer interface {
// BuildAndDeploy builds and deployed the specified target specs.
//
// Returns a BuildResult that expresses the outputs(s) of the build.
//
// BuildResult can be used to construct a set of BuildStates, which contain
// the last successful builds of each target and the files changed since that build.
BuildAndDeploy(ctx context.Context, st store.RStore, specs []model.TargetSpec, currentState store.BuildStateSet) (store.BuildResultSet, error)
}
type BuildOrder []BuildAndDeployer
func (bo BuildOrder) String() string {
var output strings.Builder
output.WriteString("BuildOrder{")
for _, b := range bo {
output.WriteString(fmt.Sprintf(" %T", b))
}
output.WriteString(" }")
return output.String()
}
type FallbackTester func(error) bool
// CompositeBuildAndDeployer tries to run each builder in order. If a builder
// emits an error, it uses the FallbackTester to determine whether the error is
// critical enough to stop the whole pipeline, or to fallback to the next
// builder.
type CompositeBuildAndDeployer struct {
builders BuildOrder
}
var _ BuildAndDeployer = &CompositeBuildAndDeployer{}
func NewCompositeBuildAndDeployer(builders BuildOrder) *CompositeBuildAndDeployer {
return &CompositeBuildAndDeployer{builders: builders}
}
func (composite *CompositeBuildAndDeployer) BuildAndDeploy(ctx context.Context, st store.RStore, specs []model.TargetSpec, currentState store.BuildStateSet) (store.BuildResultSet, error) {
var lastErr, lastUnexpectedErr error
logger.Get(ctx).Debugf("Building with BuildOrder: %s", composite.builders.String())
for i, builder := range composite.builders {
logger.Get(ctx).Debugf("Trying to build and deploy with %T", builder)
br, err := builder.BuildAndDeploy(ctx, st, specs, currentState)
if err == nil {
return br, err
}
if !shouldFallBackForErr(err) {
return store.BuildResultSet{}, err
}
if redirectErr, ok := err.(RedirectToNextBuilder); ok {
s := fmt.Sprintf("falling back to next update method because: %v\n", err)
logger.Get(ctx).Write(redirectErr.level, s)
} else {
lastUnexpectedErr = err
if i+1 < len(composite.builders) {
logger.Get(ctx).Infof("got unexpected error during build/deploy: %v", err)
}
}
lastErr = err
}
if lastUnexpectedErr != nil {
// The most interesting error is the last UNEXPECTED error we got
return store.BuildResultSet{}, lastUnexpectedErr
}
return store.BuildResultSet{}, lastErr
}
func DefaultBuildOrder(sbad *SyncletBuildAndDeployer, cbad *LocalContainerBuildAndDeployer, ibad *ImageBuildAndDeployer, dcbad *DockerComposeBuildAndDeployer, env k8s.Env, updMode UpdateMode, runtime container.Runtime) BuildOrder {
if updMode == UpdateModeImage || updMode == UpdateModeNaive {
return BuildOrder{dcbad, ibad}
}
if updMode == UpdateModeKubectlExec {
return BuildOrder{sbad, dcbad, ibad}
}
if updMode == UpdateModeContainer {
return BuildOrder{cbad, dcbad, ibad}
}
if updMode == UpdateModeSynclet {
if runtime == container.RuntimeDocker {
ibad.SetInjectSynclet(true)
}
return BuildOrder{sbad, dcbad, ibad}
}
if env.IsLocalCluster() && runtime == container.RuntimeDocker {
return BuildOrder{cbad, dcbad, ibad}
}
if runtime == container.RuntimeDocker {
ibad.SetInjectSynclet(true)
}
return BuildOrder{sbad, cbad, dcbad, ibad}
}